---
title: "GM4 to AMC2 ATS.TR.255 Operations on parallel or near-parallel runways — SPECIFIC REQUIREMENTS FOR PROVIDERS OF AIR TRAFFIC SERVICES, ATM/ANS · Avioverse"
description: "PRECISION APPROACH PROCEDURE — DEMONSTRATION OF SAFETY With reference to point (d)(3) of AMC2 ATS.TR.255, the demonstration of the safety of an APV…"
url: "https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-b/gm4-to-amc2-ats-tr-255-operations-on-parallel-or-near-parallel-runways"
---

# GM4 to AMC2 ATS.TR.255 Operations on parallel or near-parallel runways

SPECIFIC REQUIREMENTS FOR PROVIDERS OF AIR TRAFFIC SERVICES · Regulation (EU) 2017/373 · EAR revision 12 Mar 2025

GM Guidance material

## GM4 to AMC2 ATS.TR.255 Operations on parallel or near-parallel runways

PRECISION APPROACH PROCEDURE — DEMONSTRATION OF SAFETY

With reference to point (d)(3) of AMC2 ATS.TR.255, the demonstration of the safety of an APV procedure designed using either RNP APCH or RNP AR APCH navigation specification during simultaneous approaches may consider, inter alia:

(a) the collision risk from normal and residual (not mitigated) atypical errors;

(b) likelihood of ACAS nuisance alerting during normal operations;

(c) wake hazard;

(d) monitoring and available levels of system automation;

(e) data base management;

(f) flight management system input and related crew workload;

(g) impacts of meteorological conditions and other environmental factors; and

(h) training and published ATC break-out procedures.

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

[All rules in SUBPART B — TECHNICAL REQUIREMENTS FOR PROVIDERS OF AIR TRAFFIC SERVICES (ATS.TR)](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-b)

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.