14 C.F.R. § 91.180 Operations within airspace designated as Reduced Vertical Separation Minimum airspace.
Title 14 - Aeronautics and Space
(a) Except as provided in paragraph (b) of this section, no person may operate a civil aircraft in airspace designated as Reduced Vertical Separation Minimum (RVSM) airspace unless: (1) The operator and the operator's aircraft comply with the minimum standards of appendix G of this part; and (2) The operator is authorized by the Administrator or the country of registry to conduct such operations. (b) The Administrator may authorize a deviation from the requirements of this section. [Amdt. 91–276, 68 FR 70133, Dec. 17, 2003]
Title 14: Aeronautics and Space
PART 91—GENERAL OPERATING AND FLIGHT RULES
Subpart B—Flight Rules
Instrument Flight Rules
§ 91.180 Operations within airspace designated as Reduced Vertical Separation Minimum airspace.