---
title: "ATS.TR.140 Provision of altimeter setting information — SPECIFIC REQUIREMENTS FOR PROVIDERS OF AIR TRAFFIC SERVICES, ATM/ANS · Avioverse"
description: "The appropriate air traffic services units shall at all times have available for transmission to aircraft in flight, on request, the information required…"
url: "https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-b/ats-tr-140"
---

# ATS.TR.140 Provision of altimeter setting information

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

Official sources: [EASA Easy Access Rules (opens in a new tab)](https://www.easa.europa.eu/en/document-library/easy-access-rules/easy-access-rules-air-traffic-managementair-navigation-services-provision-services) · [EUR-Lex 2017/373 (opens in a new tab)](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32017R0373)

IR Implementing rule

## ATS.TR.140 Provision of altimeter setting information

(a) The appropriate air traffic services units shall at all times have available for transmission to aircraft in flight, on request, the information required to determine the lowest flight level which will ensure adequate terrain clearance on routes or on segment of routes for which this information is required.

(b) Flight information centres and area control centres shall have available for transmission to aircraft, on request, an appropriate number of QNH reports or forecast pressures for the flight information regions and control areas for which they are responsible, and for those adjacent.

(c) The flight crew shall be provided with the transition level in due time prior to reaching it during descent.

(d) Except when it is known that the aircraft has already received the information in a directed transmission, an QNH altimeter setting shall be included in:

(1) the descent clearance, when first cleared to an altitude below the transition level;

(2) approach clearances or clearances to enter the traffic circuit;

(3) taxi clearances for departing aircraft.

(e) An QFE altimeter setting as described in point ATS.TR.125(b) shall be provided to aircraft on request or on a regular basis in accordance with local arrangements.

(f) The appropriate air traffic services units shall round down the altimeter settings provided to aircraft to the nearest lower whole hectopascal.

IR · ATS.TR.140 — Regulation (EU) 2017/373 · Commission Implementing Regulation (EU) 2020/469 · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

GM Guidance material

## GM1 ATS.TR.140(c) Provision of altimeter setting information

The transition level may be included in the approach clearances or provided when requested by the pilot.

GM · GM1 ATS.TR.140(c) — Regulation (EU) 2017/373 · ED Decision 2020/008/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

GM Guidance material

## GM2 ATS.TR.140(c) Provision of altimeter setting information

The provision of transition level may be accomplished by voice communications, ATIS broadcast or data link.

GM · GM2 ATS.TR.140(c) — 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 2 Nov 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.