AIM 4-6-5

RVSM Mandate. If either the operatoris not authorized for RVSM operations or the aircraft is not RVSM-compliant, the pilot will neither request nor accept a clearance into RVSM airspace unless: The flight is conducted by a non-RVSM DoD, MEDEVAC, certification/development or foreign State (government) aircraft in accordance with paragraph 4-6-10 , Procedures for Accommodation of Non-RVSM Aircraft.

The pilot intends to climb to or descend from FL 430 or above in accordance with paragraph 4-6-11 , Non-RVSM Aircraft Requesting Climb to and Descent from Flight Levels Above RVSM Airspace Without Intermediate Level Off.

An emergency situation exists.

Basic RVSM Operating Practices and Procedures. AC 91-85 contains pilot practices and procedures for RVSM. Operators must incorporate applicable practices and procedures, as supplemented by the applicable paragraphs of this section, into operator training or pilot knowledge programs and operator documents containing RVSM operational policies.

AC 91-85 contains practices and procedures for flight planning, preflight procedures at the aircraft, procedures prior to RVSM airspace entry, inflight (en route) procedures, contingency procedures and post flight.

The following paragraphs either clarify or supplement AC 91-85 practices and procedures.