Zero Zone, Inc. v. Dep't of Energy, No. 14-2334 (7th Cir. 2016)

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Justia Opinion Summary

After the 2012 enactment of the American Energy Manufacturing Technical Corrections Act, 42 U.S.C. 6313(c)(4)), the U.S. Department of Energy (DOE) published two final rules in 2014, aimed at improving the energy efficiency of commercial refrigeration equipment (CRE). One adopted new energy efficiency standards for CRE, 79 Fed. Reg. 17,726. The second rule, issued a month later, clarified the test procedures that DOE uses to implement those standards, 79 Fed. Reg. 22,278. Trade associations of CRE manufacturers challenged the rules. The Seventh Circuit upheld the rules, rejecting challenges to DOE’s engineering analysis, economic analysis, regulatory flexibility analysis, and assessment of the cumulative regulatory burden. The court concluded that “DOE acted in a manner worthy of deference.” The first rule was premised on an analytical model that is supported by substantial evidence and was not arbitrary. DOE conducted a cost‐ benefit analysis that is within its statutory authority and is supported by substantial evidence. It gave appropriate consideration to the rule’s effect on small businesses and the role of other agency regulations. DOE similarly acted within its authority, and within reason, when it promulgated the Test Procedure Rule.

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In the United States Court of Appeals For the Seventh Circuit ____________________ Nos. 14 2147, 14 2159, & 14 2334 ZERO ZONE, INC., et al., Petitioners, v. UNITED STATES DEPARTMENT OF ENERGY, et al., Respondents. ____________________ On Petitions for Review of Final Regulations of the United States Department of Energy. Agency No. EERE 2010 BT STD 0003 & Agency No. EERE 2013 BT TP 0025 ____________________ ARGUED SEPTEMBER 30, 2015 — DECIDED AUGUST 8, 2016 ____________________ Before BAUER, RIPPLE, and ROVNER, Circuit Judges. 2 Nos. 14 2147, 14 2159, & 14 2334 TABLE OF CONTENTS I. Background ................................................................................5 . A. Statutory and Regulatory Context ....................................5 1. Energy Policy and Conservation Act .............................5 . 2. Energy Policy Act of 2005 ................................................9 . 3. 2009 Final Rule .................................................................10 4. American Energy Manufacturing Technical Corrections Act ................................................................10 B. The New Standards Rule ..................................................10 C. The 2014 Test Procedure Rule ..........................................16 D. Petitions for Review ..........................................................18 II. Discussion ...............................................................................18 . A. Engineering Analysis ........................................................22 1. Notice and Comment ......................................................23 2. Compressors .....................................................................26 3. Insulation Foam Thickness ............................................29 . 4. Validation .........................................................................32 B. Economic Analysis .............................................................35 1. Elasticity ............................................................................36 2. Environmental Benefits ..................................................39 3. Cost Benefit Analysis ......................................................41 4. Anticompetitive Effects ..................................................45 C. Regulatory Flexibility Analysis .......................................52 Nos. 14 2147, 14 2159, & 14 2334 3 D. Cumulative Regulatory Burden ......................................57 1. EPA Significant New Alternatives Policy Program ...57 2. ENERGY STAR Program ...............................................60 . E. 2014 Test Procedure Rule ..................................................60 1. Conformity to Industry Standards ...............................61 . 2. Operation of the Rule ......................................................63 3. Procedural Challenges ....................................................65 Conclusion ...................................................................................68 RIPPLE, Circuit Judge. The United States Department of En ergy (“DOE”) published two final rules aimed at improving the energy efficiency of commercial refrigeration equipment 1 (“CRE”). The first rule adopted new energy efficiency stand ards for CRE. 79 Fed. Reg. 17,726 (Mar. 28, 2014) (the “New 1 “Commercial refrigeration equipment” includes refrigerators and freez ers sold to restaurants and other industries. The term specifically is de fined as refrigeration equipment which: (i) is not a consumer product … ; (ii) is not designed and marketed exclusively for medi cal, scientific, or research purposes; (iii) operates at a chilled, frozen, combination chilled and frozen, or variable temperature; (iv) displays or stores merchandise and other perishable materials horizontally, semivertically, or vertically; (v) has transparent or solid doors, sliding or hinged doors, a combination of hinged, sliding, transparent, or solid doors, or no doors; 4 Nos. 14 2147, 14 2159, & 14 2334 Standards Rule”). The second rule, issued a month later, clar ified the test procedures that DOE uses to implement those standards. 79 Fed. Reg. 22,278 (Apr. 21, 2014) (the “2014 Test Procedure Rule”). Petitioners Zero Zone, Inc. (“Zero Zone”), a small business specializing in CRE, and Air Conditioning, Heating and Re frigeration Institute (“AHRI”), a trade association of CRE manufacturers, petitioned for review of both rules. Petitioner North American Association of Food Equipment Manufactur ers (“NAFEM”), another trade association of CRE manufac turers, petitioned for review of the first rule. AHRI and Zero Zone moved to consolidate the cases, and we granted the mo 2 tion. (vi) is designed for pull down temperature applications or holding temperature applications; and (vii) is connected to a self contained condensing unit or to a remote condensing unit. 42 U.S.C. § 6311(9)(A). 2 The Energy Policy and Conservation Act (“EPCA”) grants us jurisdiction to hear these cases: Any person who will be adversely affected by a rule pre scribed under section 6293, 6294, or 6295 of this title may, at any time within 60 days after the date on which such rule is prescribed, file a petition with the United States court of appeals for the circuit in which such person re sides or has his principal place of business, for judicial re view of such rule. 42 U.S.C. § 6306(b)(1). The New Standards Rule was prescribed under § 6295. The 2014 Test Procedure Rule was prescribed under § 6314, which is covered by § 6306(b). See id. § 6316(a)(1) (explaining that “references to Nos. 14 2147, 14 2159, & 14 2334 5 Petitioners challenge both the decisionmaking process and the substance of the final rules. Upon review of those challenges, we conclude that DOE acted in a manner worthy of our deference. The New Standards Rule is premised on an analytical model that is supported by substantial evidence and is neither arbitrary nor capricious. DOE conducted a cost benefit analysis that is within its statutory authority and is supported by substantial evidence. Its methodology and con clusions were not arbitrary or capricious. It also gave appro priate consideration to the rule’s effect on small businesses and the role of other agency regulations. DOE similarly acted within its authority, and within reason, when it promulgated the 2014 Test Procedure Rule. For these reasons, we deny the petitions in their entirety. I BACKGROUND A. Statutory and Regulatory Context 1. Energy Policy and Conservation Act The Energy Policy and Conservation Act (“EPCA”), Pub. L. No. 94 163, §§ 321–339, 89 Stat. 871, 917–32 (1975) (codified as amended at 42 U.S.C. §§ 6201–6422) was enacted in part to improve the energy efficiency of specific types of equipment and appliances. § 2(5), 89 Stat. at 874. Congress enacted the EPCA in the wake of the 1973–1974 embargo of petroleum ex ports to the United States by the Organization of Arab Petro leum Exporting Countries. S. Rep. No. 94 26, at 26 (1975). It sections 6293, 6294, and 6295 of this title shall be considered as references to sections 6314, 6315, and 6313 of this title”). 6 Nos. 14 2147, 14 2159, & 14 2334 viewed the embargo as presenting a need for “legislation which would facilitate the reduction of the nation’s petroleum consumption through energy conservation.” Id. at 27; see also H.R. Rep. No. 94 340, at 1 (1975) (“This legislation is directed to the attainment of the collective goals of increasing domestic supply, conserving and managing energy demand, and establish ing standby programs for minimizing this nation’s vulnera bility to major interruptions in the supply of petroleum im ports.” (emphasis added)). As originally enacted, the EPCA authorized the Federal 3 Energy Administration (“FEA”)—the predecessor to DOE — to implement voluntary “energy efficiency improvement tar get[s]” that would encourage manufacturers to decrease the energy consumption of their equipment. Pub. L. No. 94 163, § 325, 89 Stat. 923–26. However, Congress determined shortly thereafter that, “[u]nder the target approach, there would be little incentive by a manufacturer to exceed a target, and to do so might place a given manufacturer at a competitive disad vantage.” H.R. Rep. No. 95 496, at 45 (1977). It therefore amended the EPCA to impose mandatory energy conservation standards. National Energy Conservation Policy Act, Pub. L. No. 95 619, § 422, 92 Stat. 3206, 3259 (1978). As amended, the EPCA directs DOE to review these standards and implement new ones when appropriate. 42 U.S.C. §§ 6313(c), 6316(e), 6295(m). 3 The Department of Energy Organization Act of 1977 established the De partment of Energy and transferred the responsibilities of the Federal En ergy Administration into DOE. Id. § 7151(a). Nos. 14 2147, 14 2159, & 14 2334 7 When establishing new energy conservation standards, DOE must follow certain statutory requirements. First, stand ards may not “increase[] the maximum allowable energy use” of any individual unit. Id. § 6295(o)(1). Second, standards must be “designed to achieve the maximum improvement in energy efficiency” and be “technologically feasible and eco nomically justified.” Id. § 6295(o)(2)(A). The EPCA explains that: In determining whether a standard is economi cally justified, the Secretary shall, after receiving views and comments furnished with respect to the proposed standard, determine whether the benefits of the standard exceed its burdens by, to the greatest extent practicable, considering— (I) the economic impact of the standard on the manufacturers and on the consumers of the products subject to such standard; (II) the savings in operating costs through out the estimated average life of the covered product in the type (or class) compared to any increase in the price of, or in the initial charges for, or maintenance expenses of, the covered products which are likely to result from the imposition of the standard; (III) the total projected amount of energy, or as applicable, water, savings likely to result directly from the imposition of the standard; (IV) any lessening of the utility or the perfor mance of the covered products likely to re sult from the imposition of the standard; 8 Nos. 14 2147, 14 2159, & 14 2334 (V) the impact of any lessening of competi tion, as determined in writing by the Attor ney General, that is likely to result from the imposition of the standard; (VI) the need for national energy and water conservation; and (VII) other factors the Secretary considers relevant. Id. § 6295(o)(2)(B)(i). The EPCA further explains that, for the purposes of determining anticompetitive effects, the Attorney General must submit his or her opinion in writing “not later than 60 days after the publication of a proposed rule” and that “[a]ny such determination and analysis shall be published by the Secretary in the Federal Register.” Id. § 6295(o)(2)(B)(ii). The EPCA also charges DOE with establishing test proce dures for measuring the energy use of covered equipment. Id. § 6314. Manufacturers must use these test procedures when determining whether their equipment complies with the ap plicable energy conservation standards. Id. §§ 6295(s), 6316(e)(1). According to the EPCA: (1) The Secretary shall, not later than 3 years af ter the date of prescribing a test procedure un der this section (and from time to time thereaf ter), conduct a reevaluation of such procedure and, on the basis of such reevaluation, shall de termine if such test procedure should be amended. In conducting such reevaluation, the Secretary shall take into account such infor mation as he deems relevant, including techno Nos. 14 2147, 14 2159, & 14 2334 9 logical developments relating to the energy effi ciency of the type (or class) of covered equip ment involved. (2) If the Secretary determines under paragraph (1) that a test procedure should be amended, he shall promptly publish in the Federal Register proposed test procedures incorporating such amendments and afford interested persons an opportunity to present oral and written data, views, and arguments. Such comment period shall not be less than 45 days’ duration. Id. § 6314(c). 2. Energy Policy Act of 2005 Congress amended the EPCA in 2005, and in doing so added CRE to the industrial equipment category. Energy Pol icy Act of 2005, Pub. L. No. 109 58, § 136, 119 Stat. 594, 638–39 (codified at 42 U.S.C. § 6313(c)(2)–(3)) (“EPACT”). The EPACT prescribed standards for six different classes of CRE. 4 § 136, 119 Stat. at 639. It also required DOE to set standards for additional classes of CRE that were not yet covered by the EPCA. Id. 4 Specifically, the EPACT prescribed standards for refrigerators with solid doors, refrigerators with transparent doors, freezers with solid doors, freezers with transparent doors, refrigerator freezers with solid doors, and self contained condensing units with transparent doors designed for pull down temperature applications. Id. § 6313(c)(2)–(3). 10 Nos. 14 2147, 14 2159, & 14 2334 3. 2009 Final Rule Accordingly, DOE published a final rule on January 9, 2009, that prescribed energy conservation standards for thirty eight additional equipment classes. 74 Fed. Reg. 1092. These classes were defined by a combination of the equip ment’s geometry (vertical, semivertical, or horizontal), door type (solid, transparent, or open), condensing unit configura tion (self contained or remote condensing), and operating 5 temperature (medium, low, or ice cream). 4. American Energy Manufacturing Technical Correc tions Act Congress made an additional amendment to the statute in January 2012, which prescribed a specific standard for self contained commercial refrigerators with transparent doors. American Energy Manufacturing Technical Corrections Act, Pub. L. No. 112 210, § 4, 126 Stat. 1514, 1516 (codified as amended at 42 U.S.C. § 6313(c)(4)) (“AEMTCA”). As a result, the existing energy conservation standards for CRE at the time of this rulemaking had been established by three sepa rate sources: the EPACT, the AEMTCA, and DOE’s 2009 Final Rule. B. The New Standards Rule DOE published a sixty page framework document in 2010, which discussed the relevant issues and processes in de 5 For example, a unit could be in the “vertical open, remote condensing, medium temperature equipment class.” See 79 Fed. Reg. 17,726, 17,732 (Mar. 28, 2014). This class is identified by DOE as “VOP.RC.M.” Id. Nos. 14 2147, 14 2159, & 14 2334 11 termining whether to amend the CRE energy efficiency stand ards. 75 Fed. Reg. 24,824, 24,824–25 (May 6, 2010); App. R.6, Admin. R.2. DOE then published a notice of proposed rule making for new CRE energy efficiency standards on Septem ber 11, 2013. 78 Fed. Reg. 55,890. The notice of proposed rule making listed new standards for forty nine classes of CRE. See id. at 55,890–92. DOE also made available a technical support document for the proposed rule. App. R.6, Admin. R.51. On October 3, 2013, DOE held a public meeting in Washington, D.C. to solicit comments and provide some preliminary re sponses. App. R.6, Admin. R.62. DOE also permitted the pub lic to submit further comments until a November 12, 2013 deadline, although a few comments were submitted after that date. On March 28, 2014, DOE published the New Standards Rule, the rule before us in this proceeding. The New Standards Rule establishes energy conservation standards for forty nine classes of CRE. 79 Fed. Reg. at 17,727. Just as in DOE’s earlier 2009 Final Rule, the classes were de fined by a combination of the equipment’s geometry, door type, condensing unit configuration, and operating tempera ture. Id. at 17,743. For each class, the maximum daily energy consumption is determined by a function of either the unit’s refrigerated volume (“V”) or the unit’s total display area 6 (“TDA”). Id. at 17,727. For eight equipment classes, DOE made no changes from the 2009 Final Rule. Id. at 17,728. For the remaining forty one equipment classes, DOE set forth a 6 For example, a CRE in the vertical, open, remote condensing, medium temperature class has a maximum daily energy consumption of (0.64 x TDA + 4.07) kilowatt hours. 79 Fed. Reg. at 17,727. Therefore, if a CRE in this equipment class had a total display area of ten square feet, its maxi mum allowable energy consumption would be 6.47 kilowatt hours/day. 12 Nos. 14 2147, 14 2159, & 14 2334 higher standard that it determined was both technologically feasible and economically justified. Id. at 17,727–30. DOE esti mated that the revised standards were likely to result in a sav ings of 2.89 quadrillion British thermal units of energy in 2014—an “annualized energy savings equivalent to 0.5 per cent of total U.S. commercial primary energy consumption in 2014.” Id. at 17,728, 17,736–37. To determine the appropriate standard for each class of equipment, DOE used a design option engineering analysis. Id. at 17,745; Final Technical Support Document, App. R.6, Admin. R.102 at 5 41 to 5 68. In that analysis, DOE chose a representative unit from each class of CRE. App. R.6, Admin. R.102 at 5 1 to 5 2. DOE intentionally chose a unit that “was toward the larger end of the equipment available within that class.” Id. at 5 68. DOE then, using an analytical model, esti mated the cost to manufacturers of implementing more effi cient components into that unit, as well as the “calculated daily energy consumption” (“CDEC”) that would result from implementing those components. Id. at 5 1 to 5 3, 5 13 to 5 41. This analysis included modeling the effect of more efficient lighting, compressors, and insulation. Id. at 5 13 to 5 41. DOE then ranked the components in order of cost, and drew a cost efficiency curve that illustrated a feasible maximum energy consumption level for a unit of that size. Id. at 5 2 to 5 3. Nos. 14 2147, 14 2159, & 14 2334 13 This maximum energy consumption level served as an “analysis point” for DOE, which it used to establish an equa tion for determining a CRE unit’s maximum energy con sumption level. Id. at 5 68. DOE’s method for establishing this equation is illustrated in the graphs below: Id. As the graph to the left shows, DOE first plotted the anal ysis point on a graph measuring the relationship between a CRE unit’s CDEC and its TDA (or, in some cases, CDEC and refrigerated volume). Id. DOE then drew a line from the anal ysis point to the origin. Under the scheme contemplated by the left graph, a CRE unit would need to have a CDEC at or below that line. Id. DOE originally had intended to employ this scheme in its 2009 Final Rule, but it had received comments about the ef fects of such an equation on smaller equipment. Id. As the comments pointed out, drawing a line from the origin as sumed that a small CRE unit with a TDA approaching zero could consume energy at a level close to zero. Id. DOE there fore chose to include an “offset” factor for each class, which allowed smaller equipment to consume more energy under 14 Nos. 14 2147, 14 2159, & 14 2334 the standards. Id. The offset “represent[s] energy consump tion end effects inherent in equipment operation regardless of the size of the equipment.” Id. at 5 3. As shown in the graph above on the right, the offset serves as the y intercept for the 7 CDEC equation. Id. at 5 68. The resulting energy conservation standards do not com pel manufacturers to use any particular components to achieve improved efficiency. Instead, as DOE explained, “should manufacturers value some features over others, they are free to use different design paths in order to attain the per formance levels required.” 79 Fed. Reg. at 17,750. DOE then considered whether its new standards were eco nomically justified. Id. at 17,737. It developed five potential “trial standard levels” of energy efficiency requirements for each class and considered the costs and benefits at each level. Id. at 17,738, 17,803–11. DOE initially proposed that the stand ards be set at the second highest level. 78 Fed. Reg. at 55,948. 7 NAFEM commented before the agency and submits in its brief that DOE offset factors are ill conceived because they are based on only forty nine classes of equipment and are illogical in their structure. We have consid ered this submission on the basis of the briefs and have studied the record, including the engineering report compiled by DOE during its study of these standards. It is clear to us that DOE undertook a study of industry patterns, compared those patterns to the ones that it had encountered in earlier rulemaking, and concluded that the categories that it implemented were an accurate reflection of the current industry situation. NAFEM has countered with no data or other information demonstrating that DOE’s conclusion is not supported by substantial evidence or that its approach to the problem is arbitrary or capricious. Since this argument is underde veloped by NAFEM, we see no reason for further discussion in our later analysis. Nos. 14 2147, 14 2159, & 14 2334 15 However, after the notice and comment period, DOE deter mined that the third highest level “will offer the maximum improvement in efficiency that is technologically feasible and economically justified and will result in the significant con servation of energy.” 79 Fed. Reg. at 17,810. As part of this economic analysis, DOE requested a letter on September 24, 2013 from the United States Department of Justice (“DOJ”) that would assess the rule’s anticompetitive effect. DOJ did not respond until November 25, 2013, when the Assistant Attorney General for Antitrust sent a letter to DOE. App. R.6, Admin. R.106. According to DOJ, the new rule would not have anticompetitive effects. Id. DOE added this letter to the record on June 17, 2014—several months after the public hearing on the rule. See id. DOE also published this let ter in the Federal Register on July 28, 2015—over a year after the Final Rule had been published and one day before it filed its appellate brief in this case. 80 Fed. Reg. 44,892. After receiving the DOJ letter and other sources, DOE con cluded in the Final Rule, published on March 28, 2014, that the new standards would result in lower energy use and thus produce a net benefit to consumers between $4.93 and $11.74 billion. 79 Fed. Reg. at 17,728, 17,810. In addition, DOE noted the monetary benefits of the reductions in greenhouse gas emissions. Id. at 17,811. DOE then determined that the devel opment of new CRE would cost manufacturers between $93.9 and $165 million. Id. at 17,810. DOE concluded that the bene fits outweighed the costs and that the standards therefore would be economically justified. Id. at 17,810–11. 16 Nos. 14 2147, 14 2159, & 14 2334 C. The 2014 Test Procedure Rule The New Standards Rule noted that “[t]he test procedure amendments established in the 2012 test procedure final rule are required to be used in conjunction with the amended standards promulgated in this … final rule.” 79 Fed. Reg. at 17,735. In that 2012 Test Procedure Rule, DOE incorporated the method for calculating the TDA of CRE required by stat ute. 77 Fed. Reg. 10,292, 10,318 (Feb. 21, 2012). As shown above, the maximum allowable daily energy consumption for some units is dependent on their TDA. To measure the TDA of a CRE unit, one must take certain measurements of the unit and enter those measurements into a general equation.8 One of those measurements is the “Length of Commercial Refrigerated Display Merchandiser” (“L”). 79 Fed. Reg. at 22,299. Under DOE’s energy efficiency standards, “L” is directly proportional to a CRE unit’s maxi mum energy consumption level: the longer the display on a CRE unit, the more energy a CRE unit is allowed to consume on a daily basis. Therefore, the precise definition of “L” will impact the energy efficiency standards. However, the 2012 Test Procedure “contain[ed] no figures or illustrations in structing a user how to perform this measurement.” Id. DOE issued a notice of proposed rulemaking on October 28, 2013, which proposed a clarification on the meaning of “L” in the 2012 Test Procedure Rule. 78 Fed. Reg. 64,296, 64,309– 8 According to DOE, TDA = Dh x L + Ae. “Dh” stands for “Dimension of projected visible product.” “L” stands for “Length of Commercial Refrig erated Display Merchandiser.” “Ae” stands for “Projected area from visi ble product through end walls.” 79 Fed. Reg. 22,278, 22,299 (Apr. 21, 2014). Nos. 14 2147, 14 2159, & 14 2334 17 12.9 That definition would have corresponded to the total length of the transparent area on CRE but would have not in cluded any opaque or non transparent areas. Id. at 64,309–10. Several companies, however, submitted comments, contend ing that the “industry has always treated the length ‘L’ as the ‘length of the commercial refrigerated display merchandiser’ from inside wall to inside wall, disregarding the presence of non transparent mullions[10] and door frames.” 79 Fed. Reg. at 22,300. A little less than a month after the CRE standards were published, on April 21, 2014, DOE published a CRE test pro cedure that clarified how energy efficiency was to be meas ured. Id. at 22,278. In light of the comments it received, DOE departed from its proposed rule and published a CRE test procedure that was “consistent with and clarifie[d] current in dustry practice and the existing provisions of the DOE test procedure.” Id. at 22,301. According to this final rule, “L” was defined “as the interior length of the CRE model, provided no more than 10 percent of that length consists of non transpar ent material.” Id. The rule provided further clarification on measuring “L” for units where more than ten percent of the surface was not transparent. Id. 9 DOE issued this notice of proposed rulemaking after it issued the notice of proposed rulemaking for the New Standards Rule on September 11, 2013. 10 A mullion is the vertical bar between the panes in a window, door, or screen. 18 Nos. 14 2147, 14 2159, & 14 2334 D. Petitions for Review NAFEM timely filed a petition for review on May 23, 2014, challenging the New Standards Rule. Four days later, on May 27, 2014, AHRI and Zero Zone filed a petition similarly chal lenging the New Standards Rule. AHRI and Zero Zone then filed a petition challenging the 2014 Test Procedure Rule on June 19, 2014. Upon AHRI’s and Zero Zone’s motion, we con solidated the petitions. II DISCUSSION The petitioners raise a series of procedural and substan tive challenges to DOE’s final rules pertaining to energy effi ciency standards. We will consider, in turn, the challenges to: (1) DOE’s engineering analysis; (2) DOE’s economic analysis; (3) DOE’s regulatory flexibility analysis, which considered the effect of the new standards on small businesses; (4) DOE’s assessment of the cumulative regulatory burden; and (5) the 2014 Test Procedure Rule. Pursuant to the Administrative Procedure Act (“APA”), we will “hold unlawful and set aside agency action, findings, and conclusions” that are: (A) arbitrary, capricious, an abuse of discretion, or otherwise not in accordance with law; (B) contrary to constitutional right, power, priv ilege, or immunity; (C) in excess of statutory jurisdiction, authority, or limitations, or short of statutory right; Nos. 14 2147, 14 2159, & 14 2334 19 (D) without observance of procedure required by law; [or] (E) unsupported by substantial evidence in a case subject to sections 556 and 557 of this title … .[11] 5 U.S.C. § 706(2). When determining whether an agency’s de cision is arbitrary or capricious, we ask whether the agency has relied on factors which Congress had not in tended it to consider, entirely failed to consider an important aspect of the problem, offered an explanation for its decision that runs counter to the evidence before the agency, or is so implau sible that it could not be ascribed to a difference in view or the product of agency expertise. Nat l Ass n of Home Builders v. Defs. of Wildlife, 551 U.S. 644, 658 (2007) (quoting Motor Vehicle Mfrs. Ass n v. State Farm Mut. Auto. Ins. Co., 463 U.S. 29, 43 (1983)) (internal quotation marks omitted). “Substantial evidence,” we have explained, “means ‘such relevant evidence as a reasonable mind might accept as adequate to support the conclusion’” reached by the agency. Local 65 B, Graphic Commc’ns Conference of Int’l Bhd. of Team sters v. NLRB, 572 F.3d 342, 347 (7th Cir. 2009) (quoting Huck Store Fixture Co. v. NLRB, 327 F.3d 528, 533 (7th Cir. 2003)); see also Consol. Edison Co. v. NLRB, 305 U.S. 197, 229 (1938) (ex plaining that the agency must produce “more than a mere scintilla” of evidence). 11 The EPCA states that “no rule under” the statutory provisions applica ble to this case “may be affirmed except by substantial evidence.” 42 U.S.C. § 6306(b)(2). 20 Nos. 14 2147, 14 2159, & 14 2334 In our review, “[w]e give great deference to an agency’s predictive judgments about areas that are within the agency’s field of discretion and expertise.” W. Fuels Ill., Inc. v. ICC, 878 F.2d 1025, 1030 (7th Cir. 1989) (internal quotation marks omit ted); see also Pub. Citizen, Inc. v. NHTSA, 374 F.3d 1251, 1260– 61 (D.C. Cir. 2004). “[W]hen reviewing an agency’s scientific and technical determinations, ‘a reviewing court must gener ally be at its most deferential.’” Indiana v. EPA, 796 F.3d 803, 811 (7th Cir. 2015) (quoting Balt. Gas & Elec. Co. v. NRDC, 462 U.S. 87, 103 (1983)). However, we also note that the Supreme Court “has stressed the importance of not simply rubber stamping agency factfinding.” Dickinson v. Zurko, 527 U.S. 150, 162 (1999). Further, “[t]he reviewing court should not at tempt itself to make up for … deficiencies” in the agency’s reasoning; “‘we may not supply a reasoned basis for the agency’s action that the agency itself has not given.’” Motor Vehicle Mfrs. Ass n, 463 U.S. at 43 (quoting SEC v. Chenery Corp., 332 U.S. 194, 196 (1947)). For those of petitioners’ challenges based on the statutory language of the EPCA, our review is structured by Chevron, U.S.A., Inc. v. Natural Resources Defense Council, Inc., 467 U.S. 837 (1984). At the first step of Chevron review, we ask whether Congress has spoken directly on the precise question of inter pretation. Chevron, 467 U.S. at 842 (“If the intent of Congress is clear, that is the end of the matter … .”). When there is a statutory ambiguity, we then move to the second step of Chev ron review and ask whether the agency’s interpretation is “ar bitrary or capricious in substance.” Mayo Found. for Med. Educ. & Research v. United States, 562 U.S. 44, 53 (2011) (internal quo tation marks omitted). As the Supreme Court has noted, this second step of Chevron is functionally equivalent to tradi Nos. 14 2147, 14 2159, & 14 2334 21 tional arbitrary and capricious review under the APA. Judu lang v. Holder, 132 S. Ct. 476, 483 n. 7 (2011). For those of peti tioners’ challenges based on the language of DOE regulations, we will uphold DOE’s interpretations of its own regulation “unless plainly erroneous or inconsistent with the regula tion.” Auer v. Robbins, 519 U.S. 452, 461 (1997) (internal quota tion marks omitted); see also Joseph v. Holder, 579 F.3d 827, 833 (7th Cir. 2009).12 12 The Supreme Court has explained that: Although Auer ordinarily calls for deference to an agency’s interpretation of its own ambiguous regulation, even when that interpretation is advanced in a legal brief, see Chase Bank USA, N.A. v. McCoy, 562 U.S. —, —, 131 S.Ct. 871, 880, 178 L.Ed.2d 716 (2011); Auer, 519 U.S., at 461–462, 117 S.Ct. 905, this general rule does not apply in all cases. Deference is undoubtedly inappropriate, for ex ample, when the agency’s interpretation is “‘plainly erro neous or inconsistent with the regulation.’” Id., at 461, 117 S.Ct. 905 (quoting Robertson v. Methow Valley Citizens Council, 490 U.S. 332, 359, 109 S.Ct. 1835, 104 L.Ed.2d 351 (1989)). And deference is likewise unwarranted when there is reason to suspect that the agency’s interpretation “does not reflect the agency’s fair and considered judg ment on the matter in question.” Auer, supra, at 462, 117 S.Ct. 905; see also, e.g., Chase Bank, supra, at —, 131 S.Ct. at 881. This might occur when the agency’s interpretation conflicts with a prior interpretation, see, e.g., Thomas Jef ferson Univ. v. Shalala, 512 U.S. 504, 515, 114 S.Ct. 2381, 129 L.Ed.2d 405 (1994), or when it appears that the interpreta tion is nothing more than a “convenient litigating posi tion,” Bowen v. Georgetown Univ. Hospital, 488 U.S. 204, 213, 109 S.Ct. 468, 102 L.Ed.2d 493 (1988), or a “‘post hoc rationalizatio[n]’ advanced by an agency seeking to de fend past agency action against attack,” Auer, supra, at 22 Nos. 14 2147, 14 2159, & 14 2334 A. Engineering Analysis The New Standards Rule was based in part on a “design option” engineering analysis. 79 Fed. Reg. at 17,763. To con duct this analysis, DOE defined a hypothetical “representa tive unit” from each class of CRE. App. R.6, Admin. R.102 at 5 1 to 5 2. The unit displayed the characteristics of that class of CRE, id., but was “toward the larger end of equipment available for that class,” id. at 5 68. DOE then, using an ana lytical model, estimated the cost to manufacturers of imple menting more efficient components into that unit, as well as the “calculated daily energy consumption” that would result from implementing those components. Id. at 5 1 to 5 3, 5 13 to 5 41. This analysis included, for example, modeling the effect of more efficient lighting, compressors, and insulation. Id. at 5 13 to 5 41. From this model, DOE determined an appropri ate energy consumption level for a unit of that size, id. at 5 2 to 5 3, and then extrapolated from those results to create an equation for determining the energy consumption level for the rest of the class, id. at 5 68.13 The petitioners raise several procedural and substantive challenges to DOE’s engineering analysis. We will discuss each in turn. 462, 117 S.Ct. 905 (quoting Bowen, supra, at 212, 109 S.Ct. 468; alteration in original). Christopher v. SmithKline Beecham Corp., 132 S. Ct. 2156, 2166–67 (2012). 13 A more detailed explanation of the engineering analysis can be found supra Part I.B. Nos. 14 2147, 14 2159, & 14 2334 23 1. Notice and Comment NAFEM contends that DOE failed to provide a meaning ful opportunity for notice and comment of an “engineering spreadsheet” that compiled all the data that was used in DOE’s analysis. See App. R.6, Admin. R.98. Early in the prom ulgation of the standards rule, DOE provided two technical support documents that explained its planned analysis. App. R.6, Admin. R.2; App. R.6, Admin. R.30. On August 29, 2013— two weeks before the publication of the notice of proposed rulemaking—DOE published a more complete technical sup port document that further spelled out its engineering analy sis and included all the relevant raw data. See App. R.6, Ad min. R.51 at 5 1 to 5A 17. However, at that time, DOE did not provide the engineering spreadsheet that it used. After receiv ing questions about the spreadsheet at a public hearing on Oc tober 3, 2013, a DOE representative stated that DOE would make the spreadsheet publicly available. App. R.6, Admin. R.62 at 337. DOE subsequently published the spreadsheet on October 8, 2013. App. R.6, Admin. R.59. Several members of the public provided assessments of that spreadsheet in their submissions before the November 12, 2013 deadline for pub lic comments.14 Nevertheless, NAFEM now contends that the engineering spreadsheet was not provided early enough in the process and that the spreadsheet lacks certain infor mation. We previously expressed “reluctan[ce] to approve a regu lation where … much of the information in support of the pro posed rule was kept secret until after the hearing,” Granite 14 See App. R.6, Admin. R.65 A1 at 6; App. R.6, Admin. R.75 A1 at 4; App. R.6, Admin. R.85 A1 at 3. 24 Nos. 14 2147, 14 2159, & 14 2334 City Steel Co. v. EPA, 501 F.2d 925, 927–28 (7th Cir. 1974), but we have never held that petitioners have a right to full notice and comment of the scientific data relied upon by the agency. Several of our sister circuits have held that “[a]mong the in formation that must be revealed for public evaluation are the technical studies and data upon which the agency relie[d].” Chamber of Commerce v. SEC, 443 F.3d 890, 899 (D.C. Cir. 2006) (internal quotation marks omitted); Lloyd Noland Hosp. & Clinic v. Heckler, 762 F.2d 1561, 1565 (11th Cir. 1985); Wash. Trollers Ass n v. Kreps, 645 F.2d 684, 686 (9th Cir. 1981); United States v. Nova Scotia Food Prods. Corp., 568 F.2d 240, 251–52 (2d Cir. 1977).15 This case presents no occasion for us to determine whether we ought to join these circuits. Here, an examination of the proceedings before the agency makes clear that the petition ers received adequate notice of the engineering spreadsheet. NAFEM first criticizes DOE for only providing the spread sheet a month before final comments were due. However, NAFEM and the rest of the public had access to all of the spreadsheet’s underlying data almost three months earlier when the technical support document was published. See App. R.6, Admin. R.51 at 5 1 to 5A 17. The spreadsheet simply organized this information in a different manner. We note as well that several members of the public provided meaningful 15 Cf. Am. Radio Relay League, Inc. v. FCC, 524 F.3d 227, 246 (D.C. Cir. 2008) (Kavanaugh, J., concurring) (asking whether this requirement can “be squared with the text of § 553 of the APA” and Vermont Yankee Nuclear Power Corp. v. Natural Resource Defense Council, Inc., 435 U.S. 519, 524 (1978)). Nos. 14 2147, 14 2159, & 14 2334 25 commentary in direct response to the spreadsheet by the No vember deadline.16 NAFEM received sufficient notice of the applicable data and, consequently, had adequate opportunity to comment on that spreadsheet. See App. R.6, Admin. R.98. NAFEM also submits that DOE was obliged to provide a spreadsheet that could be “manipulated” to permit manufac turers to ascertain how DOE’s analysis would apply to spe cific products in their present or future inventories. In NAFEM’s view, DOE should have been required to provide manufacturers with the capacity to insert data about their own units into the spreadsheet, so that they could “predict how [their] individual products would perform under the same analysis.”17 According to NAFEM, it should have been possible for manufacturers to manipulate the spreadsheet to account for volumes and total display areas different from the hypothetical model actually studied by DOE. At the most fundamental level, this contention fails be cause it asks the DOE spreadsheet to perform a function dif ferent from the one for which it was designed. As we have noted earlier, DOE designed the spreadsheet to calculate the efficiency level of one specific hypothetical “representative unit,” of a specific size, for each class of refrigeration equip ment. App. R.6, Admin R.102 at 5 1 to 5 2. Relying on the data from its testing of the hypothetical unit, it then created a for mula for determining the efficiency level of units of other sizes in the same class. Id. at 5 2 to 5 3. In creating that for mula, DOE did not apply the calculations on the spreadsheet 16 See supra note 14. 17 NAFEM Br. at 36. 26 Nos. 14 2147, 14 2159, & 14 2334 to units of differing sizes. See id. In any event, if a manufacturer wanted to determine the accuracy of the calculations in the engineering spreadsheet, it could have compared the spreadsheet’s results for a given type of refrigeration product to units of the same type and size in its own product line. See App. R.6, Admin. R.98. Moreover, if a manufacturer wished to go further and test the accuracy of DOE’s overall analysis, including the results that the anal ysis would produce for units of varying sizes, it could have looked to the actual energy efficiency standards provided by DOE in the notice of proposed rulemaking. See 78 Fed. Reg. at 55,892. If the manufacturer’s product, when altered to con form to the energy standards proposed by DOE, could not reach those standards, the manufacturer would have cause to believe that DOE’s underlying computations on the hypothet ical model could not be replicated in the real world or were otherwise faulty. Petitioners were provided with a sufficient opportunity to see and comment upon technical data. There is no basis here for our disturbing the agency’s decision. 2. Compressors We now turn to the substance of DOE’s engineering anal ysis. As we have discussed earlier, DOE modeled the effect of different component designs on energy efficiency in order to determine a technologically feasible energy consumption level for each class of CRE. NAFEM challenges DOE’s model ing of one of those components: compressors. DOE concluded “that two levels of technology were appli cable for the compressor design option:” “standard single speed hermetic compressors” and “high efficiency single speed hermetic compressors.” App. R.6, Admin. R.102 at 5 33. Nos. 14 2147, 14 2159, & 14 2334 27 DOE could obtain “publicly available performance data for standard single speed hermetic compressors.” Id. However, DOE pointed out, “[a]lthough several compressor manufac turers produce high efficiency compressors, little data are currently available on their performance.” Id. at 5 34. Despite this absence of data, DOE initially estimated that high efficiency compressors could achieve an efficiency level that was ten percent above the standard level. 79 Fed. Reg. at 17,760. According to the technical support document that was provided alongside the notice of proposed rulemaking, “DOE developed this multiplier through its own research, consulta tion with outside experts, and verification through discussion with commercial refrigeration equipment manufacturers.” App. R.6, Admin. R.51 at 5 30; see also App. R.6, Admin. R.62 at 71 (“A general market vetted, industry vetted assumption of a ten percent improvement in compressor EER being feasi ble across the board at a five percent cost premium was used based on the input that we got from the industry.”). However, subsequent comments from several manufacturers persuaded DOE to abandon its optimism and to expect lower perfor mance during the compliance period. Several manufacturers suggested there could only be meager product improvement on the basis of present technology, and one manufacturer, the Danfoss group, suggested that only a two percent improve ment in efficiency was realistic. 79 Fed. Reg. at 17,760. Accord ingly, DOE estimated that a switch to high efficiency com pressors would yield energy savings only two percent above the standard model. Id. This revision was not an “eyeball guesstimate.” In altering its decision, DOE had the benefit of its earlier research as well 28 Nos. 14 2147, 14 2159, & 14 2334 as the commentary of the manufacturers. It therefore was con fronted with significant warning that the state of the technol ogy made its earlier estimation unrealistic. In short, the pri mary purpose of the notice and comment period functioned as it should have, and the agency was apprised of responsible opinions contrary to its own. “[A]n agency’s change of course, so long as generally consistent with the tenor of its original proposals, indicates that the agency treats the notice and comment process seriously, and is willing to modify its posi tion where the public’s reaction persuades the agency that its initial regulatory suggestions were flawed.” Am. Med. Ass’n v. United States, 887 F.2d 760, 767 (7th Cir. 1989).18 We also cannot fault DOE for placing significant weight on the view of the Danfoss group that “it would be reasonable to assume either continued use of efficient compressors avail able today, or alternatively a 1% to 2% efficiency improve ment.” App. R.6, Admin. R.61 A1 at 2; 79 Fed. Reg. at 17,760. The agency had a basis for considering this manufacturer to be a major supplier of CRE and one with significant institu tional experience.19 Moreover, in its letter, Danfoss stated its 18 See also Kern Cty. Farm Bureau v. Allen, 450 F.3d 1072, 1076 (9th Cir. 2006). 19 NAFEM relatedly claims that DOE should have provided the public with an opportunity to respond to the Danfoss comment. We cannot ac cept this argument. “[T]he public gets to comment on the proposed rules, not on the agency’s response to earlier public comments.” Nat. Res. Def. Council v. Jackson, 650 F.3d 662, 666 (7th Cir. 2011). We would only enter tain such an argument if “the revisions materially change the text, adding features that the commentators could not have anticipated.” Id. Here, DOE initially proposed that some compressors could achieve an efficiency level that was ten percent higher than the standard compressor. The public clearly was on notice that DOE might issue a rule which assumed that Nos. 14 2147, 14 2159, & 14 2334 29 belief that the compressor technology available was “ma ture.” App. R.6, Admin. R.61 A1 at 2. DOE therefore could conclude that product development on the basis of “existing technologies,” 79 Fed. Reg. at 17,767, could be expected to be very slow during the compliance period. Relying on present technology would yield marginal improvement in compres sor performance. NAFEM nevertheless submits that the two percent in crease is inconsistent with DOE’s statement in the final rule “that existing technologies should be the basis of its engineer ing analysis.” Id. We believe that is an uncharitable and unre alistic reading of the administrative record in its entirety. DOE simply concluded that the current state of the technol ogy, including the increased use of high efficiency compres sors, would yield at least an incremental improvement. Such an incremental improvement “reflect[s] the options available to manufacturers of commercial refrigeration equipment.” Id. at 17,760. DOE’s decision may be questionable in the minds of some, but its decision is supported by substantial evidence and was reached through a reasoned decisionmaking process. “[O]ur role is limited; we require only that the agency acknowledge factual uncertainties and identify the consider ations it found persuasive.” Rural Cellular Ass n v. FCC, 588 F.3d 1095, 1105 (D.C. Cir. 2009). 3. Insulation Foam Thickness The petitioners also submit that DOE acted arbitrarily and capriciously when it modeled another component: insulation. DOE explained that increasing insulation foam thickness by a compressors could achieve an efficiency level that was two percent higher than the standard model. 30 Nos. 14 2147, 14 2159, & 14 2334 half inch was a viable design option for eight primary equip ment classes of CRE. 79 Fed. Reg. at 17,749; App. R.6, Admin. R.102 at 5 43 to 5 67. However, the petitioners contend that increasing insulation is not an available design option be cause the “footprint” of a refrigerator or freezer is sometimes fixed due to limited floor space. In their view, increasing in sulation either will decrease a unit’s internal volume (which could prevent the storage of industry standard sheets and pans at restaurants) or will increase its external dimensions (which could lead to narrower walkways and restrict the abil ity to move CRE units through doorways). In promulgating the final rule, however, DOE explained that it had conducted manufacturer interviews during the rulemaking period and that the manufacturers had agreed that an extra half inch of insulation was feasible. 79 Fed. Reg. at 17,749–50. DOE also noted that a number of models cur rently on the market were already using this thickness of in sulation, which suggested that a product with this thickness of insulation was useful and marketable to consumers. Id. at 17,750. “DOE believe[d] that this serves as a proof of concept and that the resulting changes … would be of minimal impact to end users.” Id. We must conclude that DOE’s investigation of the situation clearly justifies its conclusion. The determina tion is supported by substantial evidence and certainly cannot be characterized as arbitrary and capricious. Moreover, in promulgating the rule, DOE stated explicitly that manufacturers were “free to use different design paths in order to attain the performance levels required by today’s rule,” should they decide that increasing the thickness of in sulation would not be a viable option for some of their con sumers. Id. DOE noted, for example, that if a manufacturer Nos. 14 2147, 14 2159, & 14 2334 31 determines that adding insulation is not a possible or desira ble way to enhance energy performance, the manufacturers can instead implement enhanced evaporator coils, high effi ciency reciprocating compressors, and more effective vacuum insulated panels. See App. R.6, Admin. R.102 at 5 27, 5 32 to 5 34. The petitioners point out that these recommended alterna tives are not viable options for at least one class of CRE. See id. at 5 51, 10B 3 (describing the available design options for hor izontal self contained freezers without doors). They also con tend that, for other classes, alternatives such as evaporator coils can result in frost buildup; that high efficiency recipro cating compressors are noisy, expensive, and unreliable; and that vacuum insulated panels are prohibitively expensive. Even if these design options have their faults, however, they are still alternative solutions that manufacturers can choose in order to increase energy efficiency for the vast majority of CRE units. That one energy saving solution is not feasible in one class of CRE does not prevent DOE from including it among the energy saving devices that might be employed by the industry as a whole. Similarly, drawbacks in the other en ergy saving devices do not prevent DOE from concluding that, for units in other classes, the industry may have to settle for a less than optimum situation to achieve the necessary conservation goals. In short, DOE was on solid ground in con cluding that increasing the thickness of insulation was a fea sible design option. That conclusion is worthy of deference. AHRI and Zero Zone also contend that DOE acted capri ciously by failing to address directly a comment submitted by AHRI during the rulemaking process. See App. R.6, Admin. R.75 at 5. The comment noted that the estimated costs related 32 Nos. 14 2147, 14 2159, & 14 2334 to improving the insulation of CRE were dramatically differ ent from DOE’s estimated costs of insulation in 2009. Id. We believe that DOE’s response was entirely reasonable. It ex plained in the final rule that it “estimated the conversion costs associated with increases in foam thickness based on direct input from the industry in interviews, as well as through anal ysis of production equipment that is part of the engineering cost model.” 79 Fed. Reg. at 17,775. The analysis, DOE noted, “included capital conversion costs, including … tooling costs and production line upgrades, and product conversion costs, including redesign efforts, testing costs, industry certifica tions, and marketing changes.” Id. DOE’s conclusions were based on new data; there was no reason to provide further jus tification for departing from the estimates it had made in 2009. There was a solid basis for DOE’s determination. It was based on substantial evidence and can hardly be character ized as arbitrary or capricious. 4. Validation Finally, the petitioners contend broadly that DOE’s engi neering analysis is not based on real world application and therefore must be verified by testing actual equipment. This submission is governed by some basic principles. “That a model is limited or imperfect is not, in itself, a reason to re mand agency decisions based upon it.” Appalachian Power Co. v. EPA, 249 F.3d 1032, 1052 (D.C. Cir. 2001); see also In re Polar Bear Endangered Species Act Listing & Section 4(d) Rule Litig.— MDL No. 1993, 709 F.3d 1, 13 (D.C. Cir. 2013). Rather, we will remand only if the model “bears no rational relationship to the reality it purports to represent” or if the agency fails to Nos. 14 2147, 14 2159, & 14 2334 33 “provide a full analytical defense” when the model is chal lenged. Columbia Falls Aluminum Co. v. EPA, 139 F.3d 914, 923 (D.C. Cir. 1998) (internal quotation marks omitted). Our previous discussions go a long way toward answer ing this broad brush assault on DOE’s general manner of pro ceeding. As we have demonstrated throughout our earlier discussion, DOE provided a complete analytical defense to each of the challenges that were raised during the notice and comment period. Our review of the record gives us a high level of confidence that DOE was fully aware of the inherent difficulties of formulating regulations for real world situa tions on the basis of a model. DOE correctly noted that “[i]nputs to the model included data from tangible sources such as manufacturer literature, manufacturer interviews, production facility tours, reverse engineering and teardown of existing products on the market, and tests of commercial refrigeration equipment and components.” 79 Fed. Reg. at 17,763. DOE explained that its present analytical model was consistent with models used in at least three other final rules—including the 2009 CRE Standards Rule. Id. Indeed, in many respects, this process can be characterized as a continu ing dialogue with the industry before the backdrop of DOE’s earlier regulations. The petitioners nevertheless contend that DOE acted arbi trarily and capriciously by failing to test its conclusions against a full range of actual CRE equipment. As an initial matter, we note that an agency need not “‘justify [its] model on an ad hoc basis for every [unit] to which the model is ap plied.’” Columbia Falls Aluminum Co., 139 F.3d at 923 (quoting Chemical Mfrs. Ass n v. EPA, 28 F.3d 1259, 1265 (D.C. Cir. 34 Nos. 14 2147, 14 2159, & 14 2334 1994)). In any event, DOE performed validation testing on a representative sample of units: In response to the comments … that DOE per form validation testing to confirm the veracity of its model, at the final rule stage DOE pro cured a number of commercial refrigeration units currently on the market, including high performance units featuring advanced designs. It gathered physical test data on each unit from certification directories and, in some cases, from independent laboratory tests conducted by DOE on the units. DOE then performed physi cal teardowns and inspection of the units to quantify the features and design attributes in cluded in each model. Then, DOE used this em pirically determined data as inputs into its en gineering model, allowing the model to simu late these specific manufacturer models as closely as possible. The results showed good alignment between the model outputs and the physical test results across a range of equipment classes and efficiencies, validating the abilities of the model. 79 Fed. Reg. at 17,763; see also App. R.6, Admin. R.102 at 5 40 to 5 41 (“The results of the energy consumption model were compared against the performance data gathered through testing or certification, and the two showed sound agreement, with the energy consumption model generally being slightly conservative (modeling the units as using slightly more en ergy than they consumed as tested).”). Further, “DOE utilized information from the ENERGY STAR and California Energy Nos. 14 2147, 14 2159, & 14 2334 35 Commission appliance databases as a point of comparison to its engineering analysis results.” 79 Fed. Reg. at 17,763 (foot notes omitted). Although DOE did not provide data or further details of its validation testing, DOE did publish the web ad dresses for the appliance databases, which included the “cer tified data” that “DOE compared its results against … as a check.” Id. This is not a close call. We are convinced that DOE’s engi neering analysis, including its use of an analytical model, was neither arbitrary nor capricious. B. Economic Analysis The EPCA requires that efficiency standards be “econom ically justified.” 42 U.S.C. § 6295(o)(2)(A). In addressing this statutory mandate, DOE established five different “trial standard levels,” and determined which “level” would be economically and technologically feasible. See 79 Fed. Reg. at 17,738, 17,803. It originally proposed that the benefits of the second highest level of standards would outweigh the costs. 78 Fed. Reg. at 55,948. After receiving public comment, it de termined that the third highest level would be more appro priate. 79 Fed. Reg. at 17,810. DOE concluded that this level of standards would produce a net benefit to consumers between $4.93 and $11.74 billion and reduce greenhouse gas emissions. Id. at 17,728–29, 17,780–11. Conversely, the new standards would cost manufacturers between $93.9 and $165 million. Id. at 17,795–96. DOE determined therefore that the standards were justified. Id. at 17,810–11. The petitioners fault DOE’s economic analysis in several ways. We now address each of those arguments. 36 Nos. 14 2147, 14 2159, & 14 2334 1. Elasticity The petitioners first contend that DOE acted arbitrarily and capriciously when it assumed that the new standards would not result in significant changes in purchasing behav ior. DOE essentially treated CRE as “price inelastic,” meaning that an increase in the price of CRE would not impact the amount of CRE purchased. See 79 Fed. Reg. at 17,770. The pe titioners object to that assumption, noting that consumers could refurbish used equipment or switch to cheaper, less ef ficient models of CRE. Our review of the record convinces us that DOE’s consid eration of this issue was certainly more balanced and careful than the petitioners suggest. DOE explained in the New Standards Rule that it “did not have enough information on CRE customer behavior to explicitly model” the effects of the new standards on demand, and therefore it had to make a 20 prediction about the market for CRE. Id. In its technical sup port document, DOE reasoned: In general, when the data are available[,] DOE incorporates a purchase price elasticity into the shipments model. This allows for the possibility that total shipments will fall under a standard, due to a rise in the first cost of the equipment. For commercial refrigeration equipment, DOE 20 DOE made clear, during a public hearing, that more information was needed to measure price elasticity, and told industry leaders that “if you can supply that information, then we can incorporate that into our mod els.” App. R.6, Admin. R.62 at 220–21. That information was never pro vided. 79 Fed. Reg. at 17,770. Nos. 14 2147, 14 2159, & 14 2334 37 did not have access to any data that would al low the estimation of purchase price elasticities. Therefore the total shipments in the standards case scenarios are the same as the total ship ments in the base case scenario. As most users of this equipment are subject to health codes and other regulations, it is not very likely that a business owner would forego the purchase of needed equipment even under a price increase. Price sensitivity is more likely to occur in the form of increased equipment lifetimes. How ever, equipment lifetimes for food sales and ser vice are driven primarily by the remodeling cy cle, and so are unlikely to be affected on the av erage by a standard. App. R.6, Admin. R.102 at 9 8 to 9 9. DOE’s analysis hardly is arbitrary and capricious. A busi ness must store food at a proper temperature in order to com ply with health code regulations. Consequently, in DOE’s view, restaurants and other businesses will purchase CRE re gardless of its price. A refrigerator cannot easily be substi tuted. DOE reasonably concluded that CRE is a “necessity” for restaurants and other businesses, which makes demand 21 relatively inelastic. That conclusion is worthy of our defer ence. 21 See Crystal Semiconductor Corp. v. TriTech Microelecs. Int’l, Inc., 246 F.3d 1336, 1359 (Fed. Cir. 2001) (“[I]f substitution of a product were impossible and the product were a necessity, elasticity of demand would be zero … .”). 38 Nos. 14 2147, 14 2159, & 14 2334 The petitioners note that businesses could refurbish used equipment and that this ability to “substitute” proves that the market for CRE is elastic. Indeed, in the New Standards Rule, “DOE acknowledge[d] that increases in price due to amended standards could lead to more refurbishing of equipment (or purchase of used equipment).” 79 Fed. Reg. at 17,770 (empha sis added). DOE simply decided “that the extent of refurbish ing would not be so significant as to change the ranking of the [trial standard levels] considered for today’s rule.” Id. DOE has the authority “to make such a prediction about the market it regulates, and a reasonable prediction deserves our defer ence notwithstanding that there might also be another reason able view.” Envtl. Action, Inc. v. FERC, 939 F.2d 1057, 1064 (D.C. Cir. 1991); see also White Eagle Coop. Ass n v. Conner, 553 F.3d 467, 475 (7th Cir. 2009). The petitioners also suggest that businesses could switch to more affordable and less efficient CRE. The trend in the CRE market has been towards more efficient “closed” equip ment with transparent doors and away from “open” equip ment that does not have doors. See 79 Fed. Reg. at 17,770. The petitioners contend that the new standards will reverse that trend, as closed equipment will lose its utility. DOE acknowl edged this concern in the New Standards Rule. DOE pointed out that at least one manufacturer “had not observed a rever sal of the trend toward closed units in response to previous efficiency standards.” Id. DOE also responded to one of the stakeholders’ major concerns that the use of triple pane coated glass would reduce the visibility of objects in a CRE unit and thus decrease the utility of a closed unit. Id. DOE ex plained that the new standards “do not require triple pane coated glass.” Id. DOE thus concluded that the new standards Nos. 14 2147, 14 2159, & 14 2334 39 would not reverse the consumer trend toward closed equip ment. Id. Without evidence that contradicts DOE’s assumptions, we cannot conclude that DOE’s conclusions were “so implausible that it could not be ascribed to a difference in view or the product of agency expertise.” Nat l Ass n of Home Builders, 551 U.S. at 658 (internal quotation marks omitted); see also USA Grp. Loan Servs., Inc., v. Riley, 82 F.3d 708, 714 (7th Cir. 1996); W. Fuels Ill., Inc., 878 F.2d at 1030. The petitioners have failed to show that DOE acted arbitrarily or capriciously when it de termined that CRE was price inelastic. 2. Environmental Benefits DOE considered the environmental benefits of the amended standards when determining whether the New Standards Rule was “economically justified.” 79 Fed. Reg. at 17,738. In particular, DOE employed “an estimate of the mon etized damages associated with an incremental increase in carbon emissions in a given year,” known as the Social Cost 22 of Carbon (“SCC”). Id. at 17,777. The petitioners contend that the EPCA does not allow DOE to consider environmental fac tors and that DOE abused its discretion when it considered them. In the alternative, the petitioners contend that DOE’s analysis of the SCC was itself arbitrary and capricious. We turn first to DOE’s statutory authority under the EPCA. An agency decision is arbitrary and capricious when 22 The estimate “include[s] (but is not limited to) changes in net agricul tural productivity, human health, property damages from increased flood risk, and the value of ecosystem services.” 79 Fed. Reg. at 17,777. 40 Nos. 14 2147, 14 2159, & 14 2334 the agency “has relied on factors which Congress had not in tended it to consider.” Nat l Ass n of Home Builders, 551 U.S. at 658 (internal quotation marks omitted). Here, however, the EPCA specifically requires DOE to consider “the need for na tional energy … conservation.” 42 U.S.C. § 6295(o)(2)(B)(i)(VI). In the New Standards Rule, DOE ex plained that the “Need of the Nation to Conserve Energy” in cludes the “potential environmental benefits” which would result. 79 Fed. Reg. at 17,738 (citing the Rule’s subsection on SCC). To determine whether an energy conservation measure is appropriate under a cost benefit analysis, the expected re duction in environmental costs needs to be taken into ac count.23 We have no doubt that Congress intended that DOE have the authority under the EPCA to consider the reduction 24 in SCC. Alternatively, AHRI and Zero Zone contend that DOE’s calculation of SCC was irredeemably flawed. They submit that DOE failed to address three concerns about these calcu lations raised by the Chamber of Commerce in a letter during 23 This argument is highlighted by an amicus brief submitted by the Insti tute for Policy Integrity at New York University School of Law. The peti tioners argue that we should strike the amicus brief from the record. That motion is denied. 24 Although we need not reach these questions today, DOE probably also had the authority to consider environmental benefits under 42 U.S.C. § 6295(o)(2)(B)(i)(I), which allows the agency to consider “the economic impact of the standard on the manufacturers and on the consumers of the products subject to such standard.” Environmental benefits have an eco nomic impact. Further, DOE would have the authority to consider envi ronmental benefits under 42 U.S.C. § 6295(o)(2)(B)(i)(VII), which allows DOE to consider “other factors the Secretary considers relevant.” Nos. 14 2147, 14 2159, & 14 2334 41 the notice and comment period. See App. R.6, Admin. R.79 25 A2. That letter complained that: (1) who exactly worked on the SCC analysis had not been made public, id. at 5–7; (2) the inputs to the models were not peer reviewed, id. at 7–9; and (3) the “damages functions,” or variables based on problems like sea level rise, were determined in an arbitrary manner, id. at 12. DOE responded to the letter in general, noting that it “acknowledge[d] the limitations in the SCC estimates.” 79 Fed. Reg. at 17,779. DOE then referenced letters from multiple parties that supported the SCC values, a 2010 interagency group report on the discount rates used, and the OMB’s Final Information Quality Bulletin for Peer Review. Id. Although DOE did not respond to the specific points laid out in the Chamber of Commerce letter, it did respond to the Chamber of Commerce’s general concerns and made clear that, despite those concerns, the calculation of SCC could be used. See St. James Hosp. v. Heckler, 760 F.2d 1460, 1469 (7th Cir. 1985). DOE’s determination of SCC was neither arbitrary nor capri cious. 3. Cost Benefit Analysis The petitioners raise a series of objections to DOE’s gen eral approach to weighing the costs and benefits of its new standards. In their view, DOE’s analysis overestimated the benefits of the new rule and underestimated its costs. 25 AHRI and Zero Zone frame this issue as a violation of the Information Quality Act. See 44 U.S.C. § 3516 note (a). However, “almost every court that has addressed an Information Quality Act challenge has held that the statute ‘creates no legal rights in any third parties.’” Miss. Comm n on En vtl. Quality v. EPA, 790 F.3d 138, 184 (D.C. Cir. 2015) (quoting Salt Inst. v. Leavitt, 440 F.3d 156, 159 (4th Cir. 2006)). That being said, the APA still affords the petitioners the right to bring this challenge. 42 Nos. 14 2147, 14 2159, & 14 2334 The petitioners first contend that DOE arbitrarily consid ered indirect benefits like carbon reduction over hundreds of years but ignored indirect costs like the long term effects on displaced workers. DOE fully responded to that objection in the New Standards Rule: AHRI stated that DOE calculates the present value of the costs of standards to consumers and manufacturers over a 30 year period, but the SCC values reflect the present value of future climate related impacts well beyond 2100. AHRI stated that DOE’s comparison of 30 years of cost to hundreds of years of presumed future bene fits is inconsistent and improper. (AHRI, No. 84 at p.12) For the analysis of national impacts of the proposed standards, DOE considered the life time impacts of equipment shipped in a 30 year period. With respect to energy and energy cost savings, impacts continue past 30 years until all of the equipment shipped in the 30 year period is retired. With respect to the valuation of CO2 emissions reductions, the SCC estimates devel oped by the interagency working group are meant to represent the full discounted value (using an appropriate range of discount rates) of emissions reductions occurring in a given year. DOE is thus comparing the costs of achieving the emissions reductions in each year of the analysis, with the carbon reduction value of the emissions reductions in those same years. Nei Nos. 14 2147, 14 2159, & 14 2334 43 ther the costs nor the benefits of emissions re ductions outside the analytic time frame are in cluded in the analysis. 79 Fed. Reg. at 17,779. DOE further explained in the technical support document that these standards “should lead to up ward pressure on wages and a shift in employment away from electricity generation towards consumer goods. Note that in long run equilibrium there is no net effect on total em ployment since wages adjust to bring the labor market into 26 equilibrium.” App. R.6, Admin. R.102 at 16 3. DOE therefore found that the reduction of carbon over thirty years would have long term effects on the environment but that the in creased costs over thirty years would not have long term ef fects on employment. The petitioners may disagree with the merits of DOE’s conclusion, but DOE’s analysis is neither ar bitrary nor capricious. AHRI and Zero Zone next contend that DOE arbitrarily considered the global benefits to the environment but only considered the national costs. They emphasize that the EPCA only concerns “national energy and water conservation.” 42 U.S.C. § 6295(o)(2)(B)(i)(VI). In the New Standards Rule, DOE did not let this submission go unanswered. It explained that climate change “involves a global externality,” meaning that carbon released in the United States affects the climate of the entire world. 79 Fed. Reg. at 17,779. According to DOE, na tional energy conservation has global effects, and, therefore, those global effects are an appropriate consideration when looking at a national policy. Id. Further, AHRI and Zero Zone 26 See also 79 Fed. Reg. at 17,780 (referring to this section of the technical support document). 44 Nos. 14 2147, 14 2159, & 14 2334 point to no global costs that should have been considered alongside these benefits. Therefore, DOE acted reasonably when it compared global benefits to national costs. Finally, AHRI and Zero Zone criticize DOE’s determina tion of discount rates for CRE in its cost estimate. DOE used the “Capital Asset Pricing Model” (“CAPM”) to estimate the cost of equity financing. The CAPM assumes that the cost of equity is proportional to the amount of systemic risk of failure associated with a company. The model therefore estimates the overall risks and returns for all of a firm’s capital, rather than the risks and returns associated with one specific asset. The petitioners, however, believe that DOE should have used a model specific to the risks and returns of CRE. They contend that DOE did not adequately respond to a comment from the Mercatus Center at George Mason University, which urged DOE to adopt an analysis of capital costs that was particular to CRE.27 However, DOE addressed the Mercatus comment in the New Standards Rule in sufficient detail: The cost of capital is commonly used to esti mate the present value of cash flows to be de rived from a typical company project or invest ment, and the CAPM is among the most widely 27 Specifically, the Mercatus comment urged that a more particularized model was appropriate because (1) CRE has a higher depreciation rate than other products (meaning it will decrease in value quicker), and (2) CRE has a lower salvage value than other products (meaning that it cannot be resold as easily). App. R.6, Admin. R.72 A1 at 2–3. If CRE decreases in value at a faster rate than the average product, and if CRE cannot be resold as easily as the average product, then a company may be less willing to purchase CRE at a higher price than other products at a higher price. Nos. 14 2147, 14 2159, & 14 2334 45 used models to estimate the cost of equity fi nancing. The types of risk mentioned by Merca tus may exist, but the cost of equity financing tends to be high when a company faces a large degree of systemic risk, and it tends to be low when the company faces a small degree of sys temic risk. DOE’s approach estimates this risk for the set of companies that could purchase [CRE]. Id. at 17,767. DOE considered the point and concluded that the cost of equity financing is commonly determined at the firm wide level rather than unit by unit. Id. Therefore, the CAPM provided an appropriate estimate of the cost of equity financing. DOE’s choice of economic model was neither arbi 28 trary nor capricious. 4. Anticompetitive Effects The petitioners contend that DOE’s consideration of anti competitive effects was both substantively and procedurally arbitrary and capricious. In its cost benefit analysis, DOE 28 When discussing the Mercatus comment, AHRI and Zero Zone also con tend that DOE was required to identify a “market failure” that justified the amended efficiency standards. AHRI Br. 30; AHRI Reply Br. 22. The petitioners rely on Schurz Commc’ns, Inc. v. FCC, 982 F.2d 1043 (7th Cir. 1992) for this proposition. In Schurz, however, the agency had previously ruled that it could “not intervene in the market except where there is evi dence of a market failure.” Id. at 1053 (internal quotation marks omitted). The agency therefore was bound by its previous ruling. Id. Here, the EPCA merely requires DOE to promulgate standards which are “technologically feasible and economically justified.” 42 U.S.C. § 6295(o)(2)(A). The peti tioners point to no statute or agency rule that requires DOE to identify a market failure. Therefore, their argument is without merit. 46 Nos. 14 2147, 14 2159, & 14 2334 must consider the anticompetitive effects of its proposed rule “as determined in writing by the Attorney General.” 42 U.S.C. § 6295(o)(2)(B)(i)(V). Pursuant to this provision, the Assistant Attorney General for the Antitrust Division, acting on behalf of the Attorney General, sent DOE a letter (the “DOJ letter”). The letter stated that “the proposed energy conservation standards for commercial refrigeration equipment [we]re un likely to have a significant adverse impact on competition.” 80 Fed. Reg. at 44,892. DOE relied on this letter in the New Standards Rule and considered the Attorney General’s deter mination in its cost benefit analysis. 79 Fed. Reg. at 17,803. The petitioners contend that the DOJ letter does not articulate adequately the reasoning behind the Attorney General’s de termination. They also contend that both the DOJ letter’s sub mission to DOE and its publication to the Federal Register were untimely. As originally enacted, the EPCA instructed the rulemak ing agency (then the FEA, now DOE) to consider anticompet itive effects in its cost benefit analysis. Pub. L. No. 94 163, 29 § 325, 89 Stat. at 924–25. However, the rulemaking agency 29 The EPCA originally read: (D) For purposes of subparagraph (B), improvement of energy efficiency is economically justified if it is econom ically feasible the benefits of reduced energy consump tion, and the savings in operating costs throughout the estimated average life of the covered product, out weigh— … (iii) any negative effects on competition. Nos. 14 2147, 14 2159, & 14 2334 47 was not given the authority to determine anticompetitive ef fects on its own. Instead, only the Attorney General could de termine the extent of a regulation’s impact on competition. § 625, 89 Stat. at 925. The Attorney General would only make such a determination “on request of the Administrator, the Commission, or any person, or on his own motion.” Id. If the Attorney General decided not to submit a letter with his or her assessment of anticompetitive effects, then the agency could not consider anticompetitive effects at all. Three years after the EPCA’s enactment, these clauses were amended to their current form. Pub. L. No. 95 619, § 422, 92 Stat. at 3259–60. Under the EPCA as amended, the Attor ney General always makes a determination about a proposed 30 rule’s anticompetitive effects. That determination is submit (E) For purposes of subparagraph (D)(iii), the Adminis trator shall not determine that there are any negative ef fects on competition, unless the Attorney General (on re quest of the Administrator, the Commission, or any per son, or on his own motion) makes such determination and submits it in writing to the Administrator, together with his analysis of the nature and extent of such negative effects. The determination of the Attorney General shall be available for public inspection. Energy Policy and Conservation Act, Pub. L. No. 94 163, § 325, 89 Stat. 871, 924–25 (1975). 30 According to the EPCA: (i) In determining whether a standard is economically jus tified, the Secretary shall, after receiving views and com ments furnished with respect to the proposed standard, determine whether the benefits of the standard exceed its 48 Nos. 14 2147, 14 2159, & 14 2334 ted to DOE within sixty days of the publication of the pro posed rule. 42 U.S.C. § 6295(o)(2)(B)(ii). DOE must then con sider the “lessening of competition, as determined in writing by the Attorney General,” in its overall cost benefit analysis. Id. § 6295(o)(2)(B)(i)(V). DOE then publishes the letter in the Federal Register. Id. § 6295(o)(2)(B)(ii). Just like its predeces sor, the amended EPCA does not grant DOE the authority to alter DOJ’s conclusions or to determine anticompetitive ef fects on its own. The petitioners contend that the DOJ letter provided in sufficient reasoning and that DOE therefore erred in relying on this letter. We cannot accept this argument. DOE’s reliance on the DOJ letter was clearly consistent with its secondary burdens by, to the greatest extent practicable, consider ing— … (V) the impact of any lessening of competition, as de termined in writing by the Attorney General, that is likely to result from the imposition of the standard; … (ii) For purposes of clause (i)(V), the Attorney General shall make a determination of the impact, if any, of any lessening of competition likely to result from such stand ard and shall transmit such determination, not later than 60 days after the publication of a proposed rule prescrib ing or amending an energy conservation standard, in writing to the Secretary, together with an analysis of the nature and extent of such impact. Any such determina tion and analysis shall be published by the Secretary in the Federal Register. 42 U.S.C. § 6295(o)(2)(B). Nos. 14 2147, 14 2159, & 14 2334 49 role under this provision of the EPCA. DOE’s statutory duty under the EPCA is to defer to the Attorney General. The New Standards Rule makes clear that DOE acted in complete ac cordance with the statute: EPCA directs DOE to consider any lessening of competition that is likely to result from stand ards. It also directs the Attorney General of the United States (Attorney General) to determine the impact, if any, of any lessening of competi tion likely to result from a proposed standard and to transmit such determination to the Sec retary within 60 days of the publication of a pro posed rule and simultaneously proposed rule, together with an analysis of the nature and ex tent of the impact. (42 U.S.C. 6295(o)(2)(B)(i)(V) and (B)(ii)) To assist the Attorney General in making a determination for CRE standards, DOE provided the Department of Justice (DOJ) with copies of the [notice of proposed rulemak ing] and the [technical support document] for review. DOE received no adverse comments from DOJ regarding the proposal. 79 Fed. Reg. at 17,803. DOE did exactly what the EPCA in structs. Once it published the notice of proposed rulemaking, it awaited the Attorney General’s assessment of the effect on competition. In fact, DOE provided the Attorney General with additional information—in a technical support docu ment—so that it could receive a more informed determina tion. After reviewing this document, the transcript of the pub lic meeting, and other “supplementary information,” DOJ provided a response that articulated enough information to 50 Nos. 14 2147, 14 2159, & 14 2334 allow DOE to adequately consider anticompetitive effects. See 80 Fed. Reg. at 44,892. DOE then considered this “relevant fac tor[],” among the other statutory factors, in its cost benefit analysis. Citizens to Preserve Overton Park v. Volpe, 401 U.S. 402, 416 (1971); see also 42 U.S.C. § 6295(o)(2)(B)(i)(V). Under the EPCA, DOE could do no more. We are convinced that DOE’s approach was neither arbitrary nor capricious. Motor Vehicle Mfrs. Ass’n, 463 U.S. at 43. We must also determine whether the submission and pub lication of the DOJ letter were “without observance of proce dure required by law.” 5 U.S.C. § 706(2)(D). AHRI and Zero Zone contend that the DOJ letter was submitted to DOE after the EPCA’s deadline. They also contend that the DOJ letter was untimely published in the Federal Register. Under the EPCA, the Attorney General is required to sub mit its letter “not later than 60 days after the publication of a proposed rule.” 42 U.S.C. § 6295(o)(2)(B)(ii). However, the As sistant Attorney General for Antitrust did not respond to DOE until 75 days after the notice of proposed rulemaking. 80 Fed. Reg. at 44,892. Although DOJ erred when it submitted the letter fifteen days late, the error was harmless. “[D]ue ac count shall be taken of the rule of prejudicial error.” 5 U.S.C. § 706. “[I]f we are sure that the agency would if we remanded the case reinstate its decision—if in other words the error in its decision was harmless—a reversal would be futile … .” People of the State of Ill. v. ICC, 722 F.2d 1341, 1348 (7th Cir. 1983); see also Spiva v. Astrue, 628 F.3d 346, 353 (7th Cir. 2010). Further, “[w]e will not invalidate [an agency] decision based on procedural error unless the errors alleged could have af fected the outcome.” Zevallos v. Obama, 793 F.3d 106, 115 (D.C. Cir. 2015). The DOJ letter was submitted on November 25, Nos. 14 2147, 14 2159, & 14 2334 51 2013. See 80 Fed. Reg. at 44,892. The final rule was not pub lished until several months later, on March 28, 2014. 79 Fed. Reg. at 17,726. DOE had enough time to consider fully the At torney General’s determination of anticompetitive effects and to factor that determination into its cost benefit analysis. In deed, DOE fully considered the DOJ letter in its final rule. Id. at 17,803. The petitioners note that the DOJ letter was submitted thirteen days after the period for public comment had closed; the public therefore was denied the opportunity to respond to the Attorney General’s analysis. However, this lack of time for public comment does not render the procedural error harmful. Under the EPCA, the notice and comment period shall last “not less than 60 days” after publication of the notice of proposed rulemaking. 42 U.S.C. § 6295(p)(2) (emphasis added). However, the DOJ must submit its letter within sixty days of the publication of the notice of proposed rulemaking. Id. § 6295(o)(2)(B)(ii). Had Congress intended the public to have the opportunity to respond to the DOJ letter, it would have imposed its deadline for submission of the letter before the end of any notice and comment period. Instead, Congress imposed a deadline that ensured DOE—but not necessarily the public—had enough time to consider the letter. We are convinced that this procedural error did not impair DOE’s ability to consider anticompetitive effects and we will not re verse on this basis. The EPCA also states that “[a]ny such determination and analysis shall be published by the Secretary in the Federal Register.” Id. Here, DOE did not publish the DOJ letter until July 28, 2015, which the petitioners contend was untimely. 52 Nos. 14 2147, 14 2159, & 14 2334 However, the EPCA does not impose a deadline for publica tion. In the absence of any statutory language imposing such a requirement, we cannot hold that the delayed publication of this letter was “without observance of procedure required by law.” 5 U.S.C. § 706(2)(D). C. Regulatory Flexibility Analysis The petitioners’ concerns about the New Standards Rule’s anticompetitive effects also were addressed, in part, by DOE’s discussion of the standards’ impact on small businesses. The Regulatory Flexibility Act (“RFA”), 5 U.S.C. § 601 et seq., re quires agencies to assess the effect of their rules on small en tities. Under the RFA, “[w]hen an agency promulgates a final rule under section 553 of this title, … the agency shall prepare a final regulatory flexibility analysis.” 5 U.S.C. § 604(a). Ac cordingly, DOE included such an analysis in its final rule. 79 Fed. Reg. at 17,812–14. In that analysis, DOE acknowledged that “[s]mall firms would likely be at a disadvantage,” but it determined that no alternative program would be viable. Id. at 17,814. The petitioners contend that DOE’s final regulatory flexi bility analysis failed to comply with the RFA. The RFA re quires a final regulatory flexibility analysis to include, in rel evant part: [A] description of the steps the agency has taken to minimize the significant economic impact on small entities consistent with the stated objec tives of applicable statutes, including a state ment of the factual, policy, and legal reasons for selecting the alternative adopted in the final Nos. 14 2147, 14 2159, & 14 2334 53 rule and why each one of the other significant alternatives to the rule considered by the agency which affect the impact on small entities was re jected. 5 U.S.C. § 604(a)(6). At the outset, we note that “the Act does not require rules that are less burdensome for small busi nesses;” it instead requires that “agencies … explain why any such alternatives were rejected.” Council for Urological Interests v. Burwell, 790 F.3d 212, 226 (D.C. Cir. 2015). When reviewing an agency’s compliance with the RFA, we ask whether the agency’s analysis “demonstrat[es] a ‘reasonable, good faith effort to carry out [the RFA’s] mandate.’” U.S. Cellular Corp. v. FCC, 254 F.3d 78, 88 (D.C. Cir. 2001) (quoting Alenco 31 Commc ns, Inc. v. FCC, 201 F.3d 608, 625 (5th Cir. 2000). In its final regulatory flexibility analysis, DOE identified thirty two CRE manufacturers that met the definition of a small business, and it interviewed four of those manufactur ers. 79 Fed. Reg. at 17,813. DOE concluded that “small busi nesses will likely have greater increases in component costs than large businesses,” and “may have greater difficulty ob taining credit.” Id. After reaching this conclusion, DOE con sidered several different policy alternatives, including: “(1) [n]o change in the standard; (2) consumer rebates; (3) con sumer tax credits; (4) manufacturer tax credits; (5) voluntary energy efficiency targets; and (6) bulk government pur 31 See also Ranchers Cattlemen Action Legal Fund United Stockgrowers of Am. v. U.S. Dep t of Agric., 415 F.3d 1078, 1101 (9th Cir. 2005); Associated Fisher ies, Inc. v. Daley, 127 F.3d 104, 114 (1st Cir. 1997). 54 Nos. 14 2147, 14 2159, & 14 2334 chases.” Id. at 17,814. Those policy alternatives were dis 32 cussed in detail in the technical support document. After considering each alternative, “DOE determined that the en ergy savings of these alternatives are significantly smaller than those that would be expected to result from adoption of the amended standard levels,” and it opted not to adopt any of the alternatives. Id. The petitioners nevertheless note that DOE failed to con sider an exemption for small businesses in its final regulatory flexibility analysis. Under § 604 of the RFA, an agency must discuss “each one of the other significant alternatives” in its final regulatory flexibility analysis. 5 U.S.C. § 604. The RFA does not require that an agency “address every alternative, but only that it address significant ones.” Associated Fisheries, Inc. v. Daley, 127 F.3d 104, 115 (1st Cir. 1997); see also Ranchers Cattlemen Action Legal Fund United Stockgrowers of Am. v. U.S. Dep t of Agric., 415 F.3d 1078, 1102 (9th Cir. 2005). In the peti tioners’ view, a small business exemption constitutes a signif icant alternative and must be considered. Section 604 does not define what the RFA considers to be “significant” alternatives. See 5 U.S.C. § 604. However, when describing an agency’s duty to write an initial regulatory flex ibility analysis, § 603 states that: Consistent with the stated objectives of applica ble statutes, the analysis shall discuss significant alternatives such as— (1) the establishment of differing compliance or reporting requirements or timetables that 32 App. R.6, Admin. R.66 at 17 1 to 17 A 20. Nos. 14 2147, 14 2159, & 14 2334 55 take into account the resources available to small entities; (2) the clarification, consolidation, or simpli fication of compliance and reporting re quirements under the rule for such small en tities; (3) the use of performance rather than design standards; and (4) an exemption from coverage of the rule, or any part thereof, for such small entities. Id. § 603(c) (emphases added). According to the petitioners, agencies must also consider all four of these “significant alter natives” in their final regulatory flexibility analysis. Therefore, the petitioners contend, by not considering one of the alterna tives listed in § 603 during its final analysis, DOE failed to 33 comply with its obligation under § 604 of the RFA. Section 603 of the RFA limits the definition of a “signifi cant alternative” to one which is “[c]onsistent with the stated 33 To the extent that the petitioners are raising a specific claim that DOE failed to comply with § 603 of the RFA, we note that their claim is not reviewable: Section 611(c) of the RFA provides that “[c]ompliance or noncompliance by an agency with the provisions of this chapter shall be subject to judicial review only in accord ance with this section.” 5 U.S.C. § 611(c) (emphasis added). Section 611(a)(2) grants this court “jurisdiction to review any claims of noncompliance with sections 601, 604, 605(b), 608(b), and 610.” 5 U.S.C. § 611(a)(2). Nat l Ass n of Home Builders v. EPA, 682 F.3d 1032, 1041 (D.C. Cir. 2012); see also Allied Local & Reg’l Mfrs. Caucus v. EPA, 215 F.3d 61, 79 (D.C. Cir. 2000). 56 Nos. 14 2147, 14 2159, & 14 2334 objectives of applicable statutes.” Id. § 603(c). Therefore, to de termine the merits of petitioners’ argument, we must first consider the objectives of the EPCA. One of the EPCA’s stated “purposes” is to “provide Federal energy conservation stand ards applicable to covered products.” 42 U.S.C. § 6295(a)(1). The EPCA contemplates exemptions for small manufacturers. Id. § 6295(t). However, those exemptions are temporary, last ing for a “period not longer than the 24 month period begin ning on the date such rule becomes effective.” Id. § 6295(t)(1). In addition, an exemption will only be made “on application of [the] manufacturer” and only after DOE investigates the unique circumstances of that manufacturer. Id. Further, the exemption can only be provided after DOE “makes a finding, after obtaining the written views of the Attorney General, that a failure to allow an exemption … would likely result in a less ening of competition.” Id. § 6295(t)(2). These provisions make clear that the EPCA’s objective is to impose consistent, na tional standards for each class of covered product. Exceptions to those standards are only allowed for short periods of time, and only after consultation with the Attorney General. A blanket exemption—made without any temporal limitation, any applications from manufacturers, or any input from the Attorney General—would be “[inc]onsistent with the stated objectives of” the EPCA. See 5 U.S.C. § 603(c). Therefore, a blanket exemption for small businesses was not a significant alternative that DOE needed to consider. DOE made a “good faith effort” to describe both the im pact of its amended standard on small businesses and the sig nificant alternatives it considered. U.S. Cellular Corp., 254 F.3d at 88. Therefore, its final regulatory flexibility analysis fully complied with the RFA. Nos. 14 2147, 14 2159, & 14 2334 57 D. Cumulative Regulatory Burden The petitioners contend that DOE failed to properly con sider the impact of two other regulatory burdens on CRE manufacturers: EPA’s Significant New Alternatives Policy (“SNAP”) Rule and the ENERGY STAR Program. According to DOE Process Rule 10(g), DOE must consider the cumula tive impacts of other federal regulations. 10 C.F.R. pt. 430, subpt. C, app. A, at 10(g) (2016). DOE decided that neither the SNAP rule nor the ENERGY STAR Program warranted a change in its regulations. 79 Fed. Reg. at 17,754, 17,798. There fore, we must determine whether DOE has “articulate[d] a satisfactory explanation for its action including a rational con nection between the facts found and the choice made.” Motor Vehicle Mfrs. Ass’n, 463 U.S. at 43 (internal quotation marks omitted). 1. EPA Significant New Alternatives Policy Program We first turn to EPA’s proposed SNAP rulemaking. At the time of DOE’s rulemaking, EPA was reviewing the refriger ants R404 and R134a and was considering removing those re frigerants from commercial refrigeration applications. 79 Fed. 34 Reg. at 17,754. Both R404 and R134a were used in DOE’s en 34 EPA published its final rule on refrigerants more than a year after the New Standards Rule. See 80 Fed. Reg. 42,870 (July 20, 2015). In the rule, EPA noted that: We do, however, consider issues such as technical needs for energy efficiency (e.g., to meet DOE standards) in de termining whether alternatives are “available.” EPA rec ognizes that the energy efficiency of particular models of 58 Nos. 14 2147, 14 2159, & 14 2334 gineering analysis. Id. NAFEM contends that, based on a po tential SNAP rule that EPA was considering, DOE should have considered refrigerants other than R404 and R134a. Responding to this critique, DOE explained that “there are currently no mandatory initiatives such as refrigerant phase outs,” id., and that “DOE does not include the impacts of pending legislation or unfinalized regulations in its analyses, as any impact would be speculative,” id. at 17,775. Indeed, EPA did not even issue a notice of proposed rulemaking re garding the SNAP program until months after DOE’s final rule. See 79 Fed. Reg. 46,126 (Aug. 6, 2014). “In circumstances involving agency predictions of uncertain future events, com plete factual support in the record for [an agency’s] judgment or prediction is not possible or required since a forecast of the direction in which future public interest lies necessarily in volves deductions based on the expert knowledge of the equipment is a significant factor when choosing equip ment. We also recognize that the energy efficiency of any given piece of equipment is in part affected by the choice of refrigerant and the particular thermodynamic and thermophysical properties that refrigerant possesses. Alt hough we cannot know what energy efficiency will be achieved in future products using a specific acceptable re frigerant, we can point to both actual equipment and test ing results that show promise and often better results than the equipment using the refrigerants that we are finding unacceptable. Id. at 42,921. After assessing the impact of the New Standards Rule, EPA went on to extend the “change of status” date for certain units. See id. at 42,908, 42,916–17. Nos. 14 2147, 14 2159, & 14 2334 59 agency.” Rural Cellular Ass n, 588 F.3d at 1105 (internal quota tion marks omitted). DOE’s determination that the SNAP rulemaking might not come to fruition is entirely reasonable, and it is certainly within its discretion.35 Further, DOE explained that even if it assumed the SNAP rulemaking would become binding, it did not have adequate “publicly available data on the design, construction, and op eration of equipment featuring alternative refrigerants to fa cilitate the level of analysis of equipment performance which would be needed.” 79 Fed. Reg. at 17,754. NAFEM finds this rationale inadequate; it contends that DOE should have relied on data regarding the use of alternative refrigerants in Eu rope. However, NAFEM does not point to any comment that raised this issue before the agency during the notice and com ment period. Further, DOE notes that the basic design of CRE in Europe differs from CRE in the United States, making that data unreliable. In light of the deference due to DOE, White Eagle Coop. Ass n, 553 F.3d at 474, DOE’s decision to ignore the EPA SNAP rulemaking was not arbitrary or capricious.36 35 As part of their objection to DOE’s consideration of carbon benefits, AHRI and Zero Zone criticize DOE’s decision to ignore the impact of the EPA’s proposed power plant rule on greenhouse gas emissions. For the same reasons noted above, DOE was entirely within reason to disregard the impact of this pending regulatory action. 36 We observe that DOE provided a remedy for any CRE manufacturers that are unduly impacted by the burden of subsequent regulation. In the New Standards Rule, DOE explained that “[i]f a manufacturer believes that its design is subjected to undue hardship by regulations, the manu facturer may petition” DOE, which “has the authority to grant … relief on a case by case basis.” 79 Fed. Reg. at 17,754. 60 Nos. 14 2147, 14 2159, & 14 2334 2. ENERGY STAR Program NAFEM also contends that DOE failed to take account of the ENERGY STAR program. ENERGY STAR is a program that provides voluntary certifications and ratings to energy efficient products as a way to incentivize manufacturers. 79 Fed. Reg. at 17,739. DOE noted that the program was “volun tary for manufacturers. As such, [it is] not part of DOE’s con sideration of cumulative regulatory burden.” Id. at 17,798. That determination was entirely reasonable. DOE’s decision not to consider ENERGY STAR was neither arbitrary nor ca pricious. In sum, DOE satisfied its duty laid out in Process Rule 10(g). 10 C.F.R. pt. 430, subpt. C, app. A. Neither the possibil ity of a SNAP rulemaking nor the ENERGY STAR program needed to be considered by DOE. E. 2014 Test Procedure Rule We now consider AHRI’s and Zero Zone’s challenges to the 2014 Test Procedure Rule, a rule published after the New Standards Rule. As discussed above, DOE encountered an in terpretive difficulty when measuring the total display area 37 (“TDA”) of a CRE unit. Determining the TDA of a unit is essential to calculating the maximum allowable energy con sumption level for certain CRE units. 79 Fed. Reg. at 22,299. According to DOE, the 2014 Test Procedure Rule clarified how CRE manufacturers should measure a specific aspect of the TDA: “L,” otherwise known as the “Length of Commer cial Refrigerated Display Merchandiser.” Id. AHRI and Zero 37 See supra Part I.C. Nos. 14 2147, 14 2159, & 14 2334 61 Zone now contend, however, that the clarified definition of “L” is contrary to law, substantively arbitrary and capricious, and was promulgated in an impermissible manner. They fur ther submit that if the 2014 Test Procedure Rule is ruled inva lid, the New Standards Rule—which incorporates the defini tion of “L”—must fall as well. 1. Conformity to Industry Standards AHRI and Zero Zone first contend that the 2014 Test Pro cedure’s definition of “L” is contrary to the EPCA’s definition of “L.” As previously mentioned, “L” is a variable in the func tion for determining the TDA of a CRE unit. The EPCA states that “‘TDA’ means the total display area (ft2) of the refriger ated case, as defined in AHRI Standard 1200.” 42 U.S.C. § 6313(c)(1)(D) (emphasis added). Therefore, the definition of “L” employed by DOE must align with this industry stand ard. According to AHRI and Zero Zone, however, DOE’s clar ified definition of “L” deviated from AHRI Standard 1200. Specifically, AHRI and Zero Zone believe that DOE employed an impermissible “compromise” between the industry stand ard and DOE’s own definition. See 79 Fed. Reg. at 22,300 (“As a compromise, DOE is adopting … this final rule … .”) We cannot accept petitioners’ understanding of the “com promise” DOE made when defining “L.” As DOE explained in its notice of proposed rulemaking for the 2014 Test Proce dure Rule, AHRI Standard 1200 does not define or illustrate the meaning of “L.” 78 Fed. Reg. at 64,309–12. Because the promulgation and enforcement of energy standards required a precise definition of the term “L,” DOE undertook to define the term in a manner that, while remaining faithful to the stat utory language, would provide both the regulator and the in dustry with a workable metric. DOE proposed a definition of 62 Nos. 14 2147, 14 2159, & 14 2334 “L” that was consistent with AHRI Standard 1200’s stated definition of the TDA: “the sum of the projected area(s) for visible product.” 79 Fed. Reg. at 22,299 (emphasis added). DOE reasoned that if the TDA was defined as only consisting of the visible area on a CRE unit, then a variable of the TDA also must only consist of the visible area on a CRE unit. Id. After considering comments from the industry, however, DOE de termined “that defining TDA as strictly the total length of transparent area may be inconsistent with the method used by industry to calculate TDA today.” Id. at 22,300. That method typically included non transparent areas like door frames and mullions. DOE therefore chose what it termed, somewhat imprudently and improvidently, a “compromise” value. See id. “L” would be defined as the internal length of the CRE model, pro vided no more than 10 percent of that length consists of non transparent material. For those cases with greater than 10 percent of non trans parent area, L shall be determined as the pro jected linear dimension(s) of visible product plus 10 percent of non transparent area. Id. at 22,301. Contrary to AHRI and Zero Zone’s contention that DOE created a “compromise” between the department’s desired standard and the AHRI standard, DOE actually crafted a more precise definition of “L”—one not fully articulated in the text of the AHRI Standard but found in the method of im plementing the AHRI Standard. Id. at 22,299–301. DOE’s def inition of “L” therefore conforms to AHRI Standard 1200 and complies with the mandate of the EPCA. See 42 U.S.C. § 6313(c)(1)(D). Nos. 14 2147, 14 2159, & 14 2334 63 2. Operation of the Rule AHRI and Zero Zone next raise a series of challenges to the operation of the new test procedure. When issuing the 2014 Test Procedure Rule, DOE concluded that the clarified definition of “L” will “not change the measured energy con sumption of covered equipment” and therefore will not change the expected impact of the amended standards on the CRE industry. 79 Fed. Reg. at 22,301. AHRI and Zero Zone disagree with this conclusion and contend that DOE’s defini tion of “L” in the 2014 Test Procedure Rule will result in smaller maximum energy consumption levels for CRE units than the previously enforced definition. In their view, DOE acted arbitrary and capriciously when it modeled the new standards on a less stringent definition of “L.” More signifi cantly, they contend that DOE failed to adhere to the EPCA’s requirement that it “determine, in the rulemaking carried out with respect to prescribing such procedure, to what extent, if any, the proposed test procedure would alter the measured energy efficiency [or] measured energy use … of any covered product as determined under the existing test procedure.” 42 U.S.C. § 6293(e)(1). This contention has no merit. Our review confirms that DOE did explain why the definition of “L” in the 2014 Test Procedure Rule was consistent with the definition it had pre viously employed. DOE referred back to its engineering anal ysis for the New Standards Rule, and it explained that the cal culation for the length of the relevant model of CRE was based “upon the continuous length of transparent area of the CRE model, which included mullions and door frames, but excluded any additional case wall present on the front face of the unit. In other words, DOE included the entire length of 64 Nos. 14 2147, 14 2159, & 14 2334 the transparent doors, including minor non transparent ar eas.” 79 Fed. Reg. at 22,300; see also App. R.6, Admin. R.102 at 5A 6 (displaying the length of the doors and TDA for the CRE models); App. R.13, Admin. R.13 A1 at 2–3 (comment from Hillphoenix noting that mullion and door frame widths were included in DOE’s calculation). DOE stated that the “10 per cent of non transparent area that may be included in the di mension L” was consistent with its consideration of the mul lions and door frames during the engineering analysis. 79 Fed. Reg. at 22,301. DOE adequately explained how it reached the conclusion “that this amendment should not change the measured energy consumption of covered equipment.” Id. We note that multiple manufacturers—including AHRI— believed that an even more stringent definition of “L” would have been consistent with prior practice. They suggested in comments that DOE only account for door mullion and door frame widths of five inches or less; any non transparent area greater than five inches would be excluded from the calcula 38 tion of “L.” DOE noted in response that “the 10 percent threshold [it adopted] is less stringent than the 5 inch thresh old recommended by manufacturers. That is, a threshold of 10 percent accommodates greater amounts of non transpar ent area in the dimension ‘L’ for a majority of CRE models.” Id. None of the petitioners have disputed DOE’s assertion that its clarified definition is more favorable to manufacturers than their proposal of a five inch threshold for non transpar ent area, and we find that assertion entirely reasonable. DOE 38 App. R.13, Admin. R.11 A1 at 4 (comment from Hussman); App. R.13, Admin. R.13 A1 at 3–4 (comment from Hillphoenix); App. R.13, Admin. R.15 A1 at 3 (comment from AHRI). Nos. 14 2147, 14 2159, & 14 2334 65 adequately explained that its clarification to the definition of “L” would have no discernable impact on the application of the new standards. 3. Procedural Challenges AHRI and Zero Zone also object to the timing of both the proposal and the publication of the 2014 Test Procedure Rule. The Rule was proposed after the New Standards Rule was proposed and published after the New Standards Rule was 39 published. The petitioners submit that this timeline violated both the EPCA and DOE’s own Process Rules. We begin with the challenge under the EPCA. According to the EPCA, “[a]ny new or amended energy conservation standard prescribed under this section shall include, where ap plicable, test procedures.” 42 U.S.C. § 6295(r) (emphases added). The petitioners contend that DOE therefore was obli gated under the EPCA to include the 2014 Test Procedures in the New Standards Rule. DOE did not fulfill this statutory mandate, they contend, because the 2014 Test Procedures were not published at the time of the publication of the New Standards Rule. In response, DOE contends that it satisfied the EPCA by including the 2012 Test Procedures in its New 40 Standards Rule. 39 The notice of proposed rulemaking for the New Standards Rule was issued on September 11, 2013. The notice of proposed rulemaking for the 2014 Test Procedure Rule was issued on October 28, 2013. The publication of the New Standards Rule occurred on March 28, 2014. The publication of the 2014 Test Procedure Rule occurred on April 21, 2014. 40 The New Standards Rule notes that “[t]he test procedure amendments established in the 2012 test procedure final rule are required to be used in 66 Nos. 14 2147, 14 2159, & 14 2334 We agree with DOE’s interpretation: the inclusion of the 2012 Test Procedures satisfies § 6295(r). The EPCA clearly contemplates that DOE will amend and proscribe test proce dures independent of energy conservation standards. Indeed, the EPCA states that “[i]f [DOE] determines that the amended test procedure will alter the measured efficiency or measured use, [DOE] shall amend the applicable energy conservation standard during the rulemaking carried out with respect to such test procedure.” Id. § 6293(e)(2). It naturally follows that if DOE determines that the amended test procedures will not alter efficiency standards—as DOE did here—DOE does not need to amend the applicable efficiency standards during that 41 rulemaking. Therefore, DOE acted well within the bounds of the EPCA when it included the 2012 Test Procedures in the New Standards Rule and then clarified the meaning of those test procedures in a subsequent rule. We now turn to the challenges under DOE’s own process rules. DOE Process Rule 7(b) explains that “[a]ny necessary modifications [to test procedures] will be proposed before is suance of an [advance notice of proposed rulemaking].” 10 C.F.R. pt. 430, subpt. C, app. A. DOE Process Rule 7(c) further explains that “[f]inal, modified test procedures will be issued prior to the [notice of proposed rulemaking] on proposed standards.” Id. The petitioners submit that DOE violated both conjunction with the amended standards promulgated in this … final rule.” 79 Fed. Reg. at 17,735. 41 See King v. Burwell, 135 S. Ct. 2480, 2489 (2015) (“[W]hen deciding whether the language is plain, we must read the words ‘in their context and with a view to their place in the overall statutory scheme.’” (quoting FDA v. Brown & Williamson Tobacco Corp., 529 U.S. 120, 133 (2000)). Nos. 14 2147, 14 2159, & 14 2334 67 of these Process Rules because the 2014 Test Procedures were not even proposed until the notice of proposed rulemaking for the New Standards Rule. DOE responds that the 2014 Test Procedures are merely “clarifying amendments” that are not 42 covered by either Process Rule. DOE Process Rule 7(b) refers to “necessary modifications” and DOE Process Rule 7(c) re fers to a “modified test procedure.” Id. In DOE’s view, clarify ing the meaning of a procedure is not equivalent to modifying the procedure itself. DOE created these Process Rules, so we will affirm DOE’s interpretation of those rules “unless plainly erroneous or in consistent with the regulation.” Auer, 519 U.S. at 461 (internal quotation marks omitted); see also Whetsel v. Network Prop. Servs., LLC, 246 F.3d 897, 901 (7th Cir. 2001). Here, DOE’s in terpretation is worthy of such deference. The Supreme Court has explained that an “interpretation” of a rule, which is meant to ascertain the meaning of text, is not the same as an “amendment” of a rule, which is meant to change the text. Pe rez v. Mortg. Bankers Ass’n, 135 S. Ct. 1199, 1207–08 (2015) (“One would not normally say that a court ‘amends’ a statute when it interprets its text. So too can an agency ‘interpret’ a regulation without ‘effectively amend[ing]’ the underlying source of law.” (alteration in original)). Similarly, a clarifica tion of a rule, which is also meant to ascertain the meaning of text, can be distinguished from a modification of a rule, which, according to the Supreme Court, “connotes moderate change.” MCI Telecomms. Corp. v. AT&T Co., 512 U.S. 218, 228 (1994). DOE determined that “L,” as defined in its previous 42 DOE Br. at 16. 68 Nos. 14 2147, 14 2159, & 14 2334 test procedure rules, was ambiguous. By clarifying the mean ing of “L” in the 2014 Test Procedure Rule, DOE acted within its authority and did not violate any regulatory or statutory provisions. Conclusion For the foregoing reasons, we deny the petitions for re view in their entirety. PETITIONS DENIED