POET Biorefining, LLC v. Environmental Protection Agency, No. 19-1139 (D.C. Cir. 2020)Annotate this Case
The EPA issued a regulation known as the Pathways II Rule, allowing renewable-fuel producers to use a measurement method "certified by a voluntary consensus standards body" (VCSB), or a method "that would produce reasonably accurate results as demonstrated through peer reviewed references." EPA then issued the Cellulosic Guidance to explain its interpretation of the applicable regulatory requirements and clarify the types of analyses and demonstrations that might meet them.
The DC Circuit dismissed in part and denied in part POET's petition for review of the Cellulosic Guidance. The court held that POET's challenge to the Guidance's treatment of VCSB-certified methods is unripe because no such method yet exists and POET's registration efforts rely on the peer-reviewed alternative. In regard to POET's challenge to the Guidance's discussion of peer-reviewed methods, the court held that the Guidance announces a final, interpretive rule that lawfully construes the underlying regulation.