§ 91.180 – Operations within airspace designated as Reduced Vertical Separation Minimum airspace.
(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.