---
title: "ATM/ANS.OR.A.035 Demonstration of compliance — Part-ATM/ANS.OR · Avioverse"
description: "A service provider shall provide all the relevant evidence to demonstrate compliance with the applicable requirements of this Regulation at the request…"
url: "https://avioverse.aero/regulations/easa/atm-ans/annex-iii-common-requirements-for-service/subpart-a/atm-ans-or-a-035"
---

# ATM/ANS.OR.A.035 Demonstration of compliance

ANNEX III COMMON REQUIREMENTS FOR SERVICE PROVIDERS (Part-ATM/ANS.OR) · Regulation (EU) 2017/373 · EAR revision 12 Mar 2025

IR Implementing rule

## ATM/ANS.OR.A.035 Demonstration of compliance

A service provider shall provide all the relevant evidence to demonstrate compliance with the applicable requirements of this Regulation at the request of the competent authority.

IR · ATM/ANS.OR.A.035 — Regulation (EU) 2017/373 · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

AMC Acceptable means of compliance

## AMC1 ATM/ANS.OR.A.035 Demonstration of compliance

EVIDENCE — DAT PROVIDERS

The exposition as referred to in AMC1 ATM/ANS.OR.A.005 ‘Application for service provider certificate’ EXPOSITION — DAT PROVIDERS should be considered as one of the means to demonstrate compliance with the applicable requirements.

AMC · AMC1 ATM/ANS.OR.A.035 — Regulation (EU) 2017/373 · ED Decision 2017/001/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

GM Guidance material

## GM1 ATM/ANS.OR.A.035 Demonstration of compliance

GENERAL — DAT PROVIDERS

In order to demonstrate compliance with the applicable requirements, the DAT provider should produce a compliance matrix/checklist detailing how its data production processes relate to EUROCAE ED-76A/RTCA DO-200B ‘Standards for Processing Aeronautical Data’, dated June 2015. EUROCAE ED-76/RTCA DO-200A may be also used for the demonstration of compliance.

GM · GM1 ATM/ANS.OR.A.035 — Regulation (EU) 2017/373 · ED Decision 2017/001/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

GM Guidance material

## GM2 ATM/ANS.OR.A.035 Demonstration of compliance

RELEVANT EVIDENCE

ATM/ANS.OR.B.005(e) requires ‘The management system shall be proportionate to the size of the service provider and the complexity of its activities, taking into account the hazards and associated risks inherent in those activities.’ Consequently, the relevant evidence to demonstrate compliance with the applicable requirements of this Regulation should be also proportionate to the size of the service provider and the complexity of its activities.

GM · GM2 ATM/ANS.OR.A.035 — Regulation (EU) 2017/373 · ED Decision 2020/008/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

GM Guidance material

## GM3 ATM/ANS.OR.A.035 Demonstration of compliance

WITNESSING THE COMPLIANCE ACTIVITIES — STATEMENT OF COMPLIANCE

The [ATM/ANS provider](https://avioverse.aero/glossary/easa/atmans-provider) will, when demonstrating the compliance of the ATM/ANS equipment with applicable requirements, such as user or safety requirements, allow the competent authority, if so requested, to participate in any compliance activity concerning the demonstration of compliance of the ATM/ANS equipment in the final or suitably mature design configuration. These demonstrations are necessary to determine that the product has no feature or characteristic that renders the ATM/ANS equipment unsafe for the intended use. Competent authority participation will increase confidence on the evidence presented as part of the SoC and facilitate its efforts to review the associated changes to the functional system. Such participation is in any case guaranteed by ATM/ANS.OR.A.050.

GM · GM3 ATM/ANS.OR.A.035 — Regulation (EU) 2017/373 · ED Decision 2023/018/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

[All rules in SUBPART A — GENERAL REQUIREMENTS (ATM/ANS.OR.A)](https://avioverse.aero/regulations/easa/atm-ans/annex-iii-common-requirements-for-service/subpart-a)

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.