---
title: "ADR.OPS.A.055 Tools and software — Part-ADR.OPS · Avioverse"
description: "When originating, processing or transmitting aeronautical data to the AIS provider, the aerodrome operator shall ensure that tools and software used to…"
url: "https://avioverse.aero/regulations/easa/aerodromes/operations-requirements-part-adr-ops/subpart-a/adr-ops-a-055"
---

# ADR.OPS.A.055 Tools and software

ANNEX IV — Operations Requirements (Part-ADR.OPS) · Regulation (EU) No 139/2014 · EAR revision 13 Mar 2026

IR Implementing rule

## ADR.OPS.A.055 Tools and software

When originating, processing or transmitting [aeronautical data](https://avioverse.aero/glossary/easa/aeronautical-data) to the AIS provider, the [aerodrome operator](https://avioverse.aero/glossary/easa/aerodrome-operator) shall ensure that tools and software used to support or automate aeronautical data processes perform their functions without adversely impacting the quality of the aeronautical data.

IR · ADR.OPS.A.055 — Regulation (EU) No 139/2014 · Delegated Regulation (EU) 2020/2148 · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

GM Guidance material

## GM1 ADR.OPS.A.055 Tools and software

SOFTWARE

(a) A means by which the requirement can be met, is through the verification of software applied to a known executable version of the software in its target operating environment.

(b) The verification of software is a process of ensuring that the software meets the requirements for the specified application or intended use of the [aeronautical data](https://avioverse.aero/glossary/easa/aeronautical-data) and aeronautical information.

(c) The verification of software is an evaluation of the output of an aeronautical data and/or aeronautical information software development process to ensure correctness and consistency with respect to the inputs and applicable software standards, rules and conventions used in that process.

GM · GM1 ADR.OPS.A.055 — Regulation (EU) No 139/2014 · ED Decision 2021/003/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

GM Guidance material

## GM2 ADR.OPS.A.055 Tools and software

TOOLS

Tools can be qualified meeting point 2.4.5 [Aeronautical Data](https://avioverse.aero/glossary/easa/aeronautical-data) Tool Qualification of EUROCAE ED76A/RTCA DO-200B ‘Standards for Processing Aeronautical Data’, dated June 2015.

GM · GM2 ADR.OPS.A.055 — Regulation (EU) No 139/2014 · ED Decision 2021/003/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026

[All rules in SUBPART A — AERODROME DATA (ADR.OPS.A)](https://avioverse.aero/regulations/easa/aerodromes/operations-requirements-part-adr-ops/subpart-a)

Consolidated from the EASA Easy Access Rules (revision 13 Mar 2026, 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.