---
title: "Article 4a Very-high frequency (VHF) emergency frequency — Cover Regulation, SERA · Avioverse"
description: "Without prejudice to paragraph 2, Member States shall ensure that the VHF emergency frequency (121.500 MHz) is only used for emergency purposes specified…"
url: "https://avioverse.aero/regulations/easa/sera/cover-regulation/powers-and-recital/article-4a"
---

# Article 4a Very-high frequency (VHF) emergency frequency

Cover Regulation · Regulation (EU) No 923/2012 · EAR revision 26 Aug 2025

IR Implementing rule

## Article 4a Very-high frequency (VHF) emergency frequency

1\. Without prejudice to paragraph 2, Member States shall ensure that the VHF emergency frequency (121.500 MHz) is only used for emergency purposes specified in point SERA.14095(d) of the Annex.

2\. Member States may exceptionally allow the use of the VHF emergency frequency referred to in paragraph 1 for other purposes than those specified in point SERA.14095(d) of the Annex, if those are limited to what is necessary to achieve their aim and in order to reduce the impact upon [aircraft](https://avioverse.aero/glossary/easa/aircraft) in distress or emergency and on the operations of [air traffic](https://avioverse.aero/glossary/easa/air-traffic) services units.

IR · Article 4a — Regulation (EU) No 923/2012 · Regulation (EU) 2020/469 · SERA Easy Access Rules · EAR revision 26 Aug 2025

[All rules in Powers and recital](https://avioverse.aero/regulations/easa/sera/cover-regulation/powers-and-recital)

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.