Aviation English
Advanced ATC

What is Reduced Vertical Separation Minimum Approval?

Reduced Vertical Separation Minimum Approval An official authorisation for an aircraft and operator to use Reduced Vertical Separation Minimum (RVSM) airspace, allowing reduced vertical separation of 1,000 feet between FL290 and FL410, in accordance with ICAO Doc 9574.

Source: ICAO Doc 9432, FAA PCG

How is “Reduced Vertical Separation Minimum Approval” Used in Practice?

Reduced Vertical Separation Minimum Approval must be confirmed before entering RVSM airspace between FL290 and FL410.

Certification Exam Relevance

ICAO Level 4ICAO Level 5ICAO Level 6EASA FCL.055

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

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Frequently Asked Questions

What is Reduced Vertical Separation Minimum Approval?

An official authorisation for an aircraft and operator to use Reduced Vertical Separation Minimum (RVSM) airspace, allowing reduced vertical separation of 1,000 feet between FL290 and FL410, in accordance with ICAO Doc 9574.

Where can I learn this term for free?

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