---
title: "GM1 SECTION IV — SPECIFIC REQUIREMENTS FOR PROVIDERS OF FLIGHT PROCEDURE DESIGN SERVICES, ATM/ANS · Avioverse"
description: "GENERAL (a) When two radio navigation aids operating in different bands of the frequency spectrum are situated at the same location, their radio…"
url: "https://avioverse.aero/regulations/easa/atm-ans/specific-requirements-for-providers-of-flight/appendix-1/gm1-section-iv"
---

# GM1 SECTION IV

SPECIFIC REQUIREMENTS FOR PROVIDERS OF FLIGHT PROCEDURE DESIGN SERVICES · Regulation (EU) 2017/373 · EAR revision 12 Mar 2025

GM Guidance material

## GM1 SECTION IV

GENERAL

(a) When two radio navigation aids operating in different bands of the frequency spectrum are situated at the same location, their radio identifications are normally the same.

(b) ‘On-request’ reporting points may be established in relation to the requirements of air traffic services for additional position reports when traffic conditions so demand.

(c) The ICAO International Codes and Routes Designators (ICARD) system is used to manage the allocation of unique five-letter name-codes (5LNC) for significant points. They are notified to the Regional Offices of ICAO for coordination and registration on the ‘ICAO five-letter name-codes and route designators (ICARD)’ data base system.

(d) Additional details on the use of the ICARD system and associated database can be found in the ‘ICAO codes and route designators. Five-Letter Name-Codes. Guidelines’.

(e) To avoid confusion, the significant point designator should not be reused for a period of at least 6 months after cancellation of the point to which they refer.

GM — Regulation (EU) 2017/373 · ED Decision 2020/008/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

[All rules in Appendix 1 — REQUIREMENTS FOR AIRSPACE STRUCTURES AND FLIGHT PROCEDURES CONTAINED THEREIN](https://avioverse.aero/regulations/easa/atm-ans/specific-requirements-for-providers-of-flight/appendix-1)

Consolidated from the EASA Easy Access Rules (revision 12 Mar 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.