---
title: "GM2 to AMC1 DAT.OR.100(a) Aeronautical data and information — SPECIFIC REQUIREMENTS FOR PROVIDERS OF DATA SERVICES, ATM/ANS · Avioverse"
description: "DATA SOURCE The first known DAT provider that uses data coming from other (non-authoritative) sources in the aeronautical data chain, accepts the…"
url: "https://avioverse.aero/regulations/easa/atm-ans/specific-requirements-for-providers-of-data/subpart-a/gm2-to-amc1-dat-or-100-a-aeronautical-data-and-information"
---

# GM2 to AMC1 DAT.OR.100(a) Aeronautical data and information

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

GM Guidance material

## GM2 to AMC1 DAT.OR.100(a) Aeronautical data and information

DATA SOURCE

The first known DAT provider that uses data coming from other (non-authoritative) sources in the aeronautical data chain, accepts the responsibility of the data originator (i.e. ensuring that the data meets the data quality requirements).

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

[All rules in SUBPART A — ADDITIONAL ORGANISATION REQUIREMENTS FOR PROVIDERS OF DATA SERVICES (DAT.OR)](https://avioverse.aero/regulations/easa/atm-ans/specific-requirements-for-providers-of-data/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.