---
title: "Appendix 4 ATS airspace classes — services provided and flight requirements — ANNEX: Rules of the Air, SERA — rule index · Avioverse"
description: "Appendix 4 ATS airspace classes — services provided and flight requirements (1 paragraph), Regulation (EU) No 923/2012. Implementing rules, AMC and GM…"
url: "https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/appendix-4"
---

# Appendix 4 ATS airspace classes — services provided and flight requirements

ANNEX: Rules of the Air · Standardised European Rules of the Air (SERA) · Regulation (EU) No 923/2012

1. ## [GM1 to Appendix 4 ATS airspace classes — services provided and flight requirements](https://avioverse.aero/regulations/easa/sera/annex-rules-of-the-air/appendix-4/gm1-to-appendix-4-ats-airspace-classes-services-provided-and-flight-requirements)

   GENERAL The purpose of this Appendix is to show the requirements related to each specific airspace class in a concise manner.

Consolidated from the EASA Easy Access Rules (revision 26 Aug 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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