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14 CFR §91.180
FAR 14 CFR §91.180

Operations within airspace designated as Reduced Vertical Separation Minimum airspace

Part 91 · Subpart B—Flight Rules

(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.

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