Navigate / EASA

GM2 ATM/ANS.OR.A.090(b) Common reference systems for air navigation

ED Decision 2020/008/R

VERTICAL REFERENCE SYSTEM

Further explanation and guidance may be found in Annex C (Vertical reference systems) to EUROCONTROL Specification for the Origination of Aeronautical Data, Volume 2 (EUROCONTROL-SPEC-154, Edition 1.0 of 04/02/2013).