---
title: "ATS.OR.100 – ATS.OR.530: SUBPART A — ADDITIONAL ORGANISATION REQUIREMENTS FOR PROVIDERS OF AIR TRAFFIC SERVICES (ATS.OR) (SPECIFIC REQUIREMENTS FOR PROVIDERS OF AIR TRAFFIC SERVICES, ATM/ANS) — rule index · Avioverse"
description: "ATS.OR.100 – ATS.OR.530, Regulation (EU) 2017/373. An air traffic services provider shall notify the competent authorities of:"
url: "https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a"
---

# SUBPART A — ADDITIONAL ORGANISATION REQUIREMENTS FOR PROVIDERS OF AIR TRAFFIC SERVICES (ATS.OR)

SPECIFIC REQUIREMENTS FOR PROVIDERS OF AIR TRAFFIC SERVICES · Air Traffic Management / Air Navigation Services · Regulation (EU) 2017/373 · ATS.OR.100 – ATS.OR.530

On this page

1. ## [GM1 Annex IV (Part-ATS)](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/gm1-annex-iv-part-ats)

   GENERAL In the context of the AMC and GM to Part-ATS, the terms listed below have the following meaning:

2. ## [ATS.OR.100 Ownership](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-100)

   An air traffic services provider shall notify the competent authorities of:

3. ## [ATS.OR.105 Open and transparent provision of service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-105)

   In addition to point ATM/ANS.OR.A.075 of Annex III, the air traffic service provider shall neither engage in conduct that would have as its object or…

4. ## [ATS.OR.110 Coordination between aerodrome operators and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-110)

   An air traffic services provider shall establish arrangements with the operator of the aerodrome at which it provides air traffic services to ensure…

   [AMC1 ATS.OR.110 Coordination between aerodrome operators and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-110#amc1-ats-or-110)

   [AMC2 ATS.OR.110 Coordination between aerodrome operators and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-110#amc2-ats-or-110)

   [AMC3 ATS.OR.110 Coordination between aerodrome operators and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-110#amc3-ats-or-110)

   [AMC4 ATS.OR.110 Coordination between aerodrome operators and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-110#amc4-ats-or-110)

   [AMC5 ATS.OR.110 Coordination between aerodrome operators and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-110#amc5-ats-or-110)

   [AMC6 ATS.OR.110 Coordination between aerodrome operators and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-110#amc6-ats-or-110)

   [GM1 ATS.OR.110 Coordination between aerodrome operators and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-110#gm1-ats-or-110)

5. ## [ATS.OR.115 Coordination between military units and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-115)

   Without prejudice to Article 6 of Regulation (EC) No 2150/2005, an air traffic services provider shall ensure that its air traffic services units, either…

6. ## [ATS.OR.120 Coordination between meteorological services providers and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-120)

   To ensure that aircraft receive the most up-to-date meteorological information for aircraft operations, an air traffic services provider shall make…

7. ## [ATS.OR.125 Coordination between aeronautical information services and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-125)

   An air traffic services provider shall provide to the relevant aeronautical information services provider the aeronautical information to be published as…

   [GM1 ATS.OR.125(a) Coordination between aeronautical information services and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-125#gm1-ats-or-125-a)

   [GM2 ATS.OR.125(a) Coordination between aeronautical information services and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-125#gm2-ats-or-125-a)

   [GM1 ATS.OR.125(c) Coordination between aeronautical information services and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-125#gm1-ats-or-125-c)

   [GM1 ATS.OR.125(d) Coordination between aeronautical information services and air traffic services providers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-125#gm1-ats-or-125-d)

8. ## [ATS.OR.127 Coordination by air traffic services providers in U-space airspace](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-127)

   Air traffic services providers shall: provide on a non-discriminatory basis the relevant traffic information regarding manned aircraft that is necessary…

   [AMC1 ATS.OR.127(a) Coordination by air traffic services providers in U-space airspace](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-127#amc1-ats-or-127-a)

9. ## [ATS.OR.130 Time in air traffic services](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-130)

   An air traffic services provider shall ensure that air traffic services units are equipped with clocks indicating the time in hours, minutes and seconds…

10. ## [ATS.OR.135 Contingency arrangements](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-135)

    An air traffic services provider shall develop contingency plans as required in point ATM/ANS.OR.A.070 of Annex III in close coordination with the air…

    [GM1 ATS.OR.135 Contingency arrangements](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-135#gm1-ats-or-135)

    [GM2 ATS.OR.135 Contingency arrangements](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-135#gm2-ats-or-135)

    [GM3 ATS.OR.135 Contingency arrangements](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-135#gm3-ats-or-135)

    [GM4 ATS.OR.135 Contingency arrangements](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-135#gm4-ats-or-135)

11. ## [ATS.OR.140 Failure and irregularity of systems and equipment](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-140)

    An air traffic services provider shall establish appropriate arrangements for air traffic services units to immediately report any failure or…

    [GM1 ATS.OR.140 Failure and irregularity of systems and equipment](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-140#gm1-ats-or-140)

12. ## [ATS.OR.145 Operation of air traffic control service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-145)

    An air traffic services provider shall ensure that information on aircraft movements, together with a record of ATC clearances issued to such aircraft…

    [AMC1 ATS.OR.145 Operation of air traffic control service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-145#amc1-ats-or-145)

    [GM1 ATS.OR.145 Operation of air traffic control](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-145#gm1-ats-or-145)

    [GM2 ATS.OR.145 Operation of air traffic control service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-145#gm2-ats-or-145)

    [GM3 ATS.OR.145 Operation of air traffic control service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-145#gm3-ats-or-145)

13. ## [ATS.OR.150 Transfer of responsibility for control and transfer of communications](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-150)

    Air traffic services provider shall establish applicable coordination procedures for transfer of responsibility for control of flights, including…

    [GM1 ATS.OR.150 Transfer of responsibility for control and transfer of communications](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-150#gm1-ats-or-150)

    [GM2 ATS.OR.150 Transfer of responsibility for control and transfer of communications](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-150#gm2-ats-or-150)

14. ## [ATS.OR.200 Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200)

    An air traffic services provider shall have in place a safety management system (SMS), which may be an integral part of the management system required in…

    [AMC1 ATS.OR.200(1) ; (2); (3) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#amc1-ats-or-200-1)

    [AMC1 ATS.OR.200(1)(i) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#amc1-ats-or-200-1-i)

    [GM1 ATS.OR.200(1)(i) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#gm1-ats-or-200-1-i)

    [GM2 ATS.OR.200(1)(i) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#gm2-ats-or-200-1-i)

    [GM3 ATS.OR.200(1)(i) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#gm3-ats-or-200-1-i)

    [AMC1 ATS.OR.200(1)(ii) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#amc1-ats-or-200-1-ii)

    [GM1 ATS.OR.200(1)(ii) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#gm1-ats-or-200-1-ii)

    [AMC1 ATS.OR.200(1)(ii) ;(iii) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#amc1-ats-or-200-1-ii-2)

    [AMC2 ATS.OR.200(1)(ii) ;(iii) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#amc2-ats-or-200-1-ii)

    [GM1 ATS.OR.200(1)(iii) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#gm1-ats-or-200-1-iii)

    [GM2 ATS.OR.200(1)(iii) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#gm2-ats-or-200-1-iii)

    [AMC1 ATS.OR.200(1)(iv) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#amc1-ats-or-200-1-iv)

    [GM1 ATS.OR.200(1)(iv) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#gm1-ats-or-200-1-iv)

    [GM2 ATS.OR.200(1)(iv) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#gm2-ats-or-200-1-iv)

    [AMC1 ATS.OR.200(1)(v) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#amc1-ats-or-200-1-v)

    [AMC2 ATS.OR.200(1)(v) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#amc2-ats-or-200-1-v)

    [GM1 ATS.OR.200(1)(v) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#gm1-ats-or-200-1-v)

    [GM1 ATS.OR.200(3)(i) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#gm1-ats-or-200-3-i)

    [AMC1 ATS.OR.200(3)(iii) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#amc1-ats-or-200-3-iii)

    [GM1 ATS.OR.200(3)(iii) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#gm1-ats-or-200-3-iii)

    [AMC1 ATS.OR.200(4)(i) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#amc1-ats-or-200-4-i)

    [GM1 ATS.OR.200(4)(i) Safety management system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-200#gm1-ats-or-200-4-i)

15. ## [ATS.OR.205 Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205)

    For any change notified in accordance with point ATM/ANS.OR.A.045(a)(1), the air traffic services provider shall:

    [GM1 ATS.OR.205(a)(1) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm1-ats-or-205-a-1)

    [GM2 ATS.OR.205(a)(1) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm2-ats-or-205-a-1)

    [GM3 ATS.OR.205(a)(1) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm3-ats-or-205-a-1)

    [GM4 ATS.OR.205(a)(1) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm4-ats-or-205-a-1)

    [GM1 ATS.OR.205(a)(1)(iii) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm1-ats-or-205-a-1-iii)

    [AMC1 ATS.OR.205(a)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#amc1-ats-or-205-a-2)

    [AMC2 ATS.OR.205(a)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#amc2-ats-or-205-a-2)

    [AMC3 ATS.OR.205(a)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#amc3-ats-or-205-a-2)

    [AMC4 ATS.OR.205(a)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#amc4-ats-or-205-a-2)

    [GM1 ATS.OR.205(a)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm1-ats-or-205-a-2)

    [GM2 ATS.OR.205(a)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm2-ats-or-205-a-2)

    [GM3 ATS.OR.205(a)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm3-ats-or-205-a-2)

    [GM1 ATS.OR.205(b) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm1-ats-or-205-b)

    [AMC1 ATS.OR.205(b)(1) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#amc1-ats-or-205-b-1)

    [AMC2 ATS.OR.205(b)(1) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#amc2-ats-or-205-b-1)

    [GM1 ATS.OR.205(b)(1) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm1-ats-or-205-b-1)

    [AMC1 ATS.OR.205(b)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#amc1-ats-or-205-b-2)

    [AMC1 ATS.OR.205(b)(3) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#amc1-ats-or-205-b-3)

    [AMC2 ATS.OR.205(b)(3) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#amc2-ats-or-205-b-3)

    [AMC1 ATS.OR.205(b)(4) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#amc1-ats-or-205-b-4)

    [AMC2 ATS.OR.205(b)(4) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#amc2-ats-or-205-b-4)

    [GM1 ATS.OR.205(b)(4) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm1-ats-or-205-b-4)

    [AMC1 ATS.OR.205(b)(5) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#amc1-ats-or-205-b-5)

    [GM1 ATS.OR.205(b)(5) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm1-ats-or-205-b-5)

    [GM2 ATS.OR.205(b)(5) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm2-ats-or-205-b-5)

    [GM3 ATS.OR.205(b)(5) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm3-ats-or-205-b-5)

    [GM4 ATS.OR.205(b)(5) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm4-ats-or-205-b-5)

    [GM1 ATS.OR.205(b)(5)(ii) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm1-ats-or-205-b-5-ii)

    [AMC1 ATS.OR.205(b)(6) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#amc1-ats-or-205-b-6)

    [GM1 ATS.OR.205(b)(6) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-205#gm1-ats-or-205-b-6)

16. ## [GM1 to AMC2 ATS.OR.205(a)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/gm1-to-amc2-ats-or-205-a-2-safety-assessment-and-assurance-of-changes-to-the)

    COMPLETENESS OF THE ARGUMENT (a) Sufficiency of safety criteria (1) A sufficient set of safety criteria is one where the safety goal of the change is…

17. ## [GM1 to AMC4 ATS.OR.205(a)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/gm1-to-amc4-ats-or-205-a-2-safety-assessment-and-assurance-of-changes-to-the)

    ASSURANCE — SOFTWARE ASSURANCE PROCESS In reference to the terms ‘correct and complete software verification’, ‘software timing performances’, ‘software…

18. ## [GM2 to AMC4 ATS.OR.205(a)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/gm2-to-amc4-ats-or-205-a-2-safety-assessment-and-assurance-of-changes-to-the)

    ASSURANCE — SOFTWARE ASSURANCE LEVELS (a) The assurance required by AMC4 ATS.OR.205(a)(2) can be provided with a level of confidence consistent with the…

19. ## [GM3 to AMC4 ATS.OR.205(a)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/gm3-to-amc4-ats-or-205-a-2-safety-assessment-and-assurance-of-changes-to-the)

    ASSURANCE — SOFTWARE ASSURANCE LEVELS ALLOCATION The process to allocate a SWAL to a software consistently with its foreseen criticality, as identified…

20. ## [GM4 to AMC4 ATS.OR.205(a)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/gm4-to-amc4-ats-or-205-a-2-safety-assessment-and-assurance-of-changes-to-the)

    ASSURANCE — EXAMPLES OF EXISTING INDUSTRIAL STANDARDS (a) The service provider is responsible for the definition of the software assurance processes.

21. ## [GM5 to AMC4 ATS.OR.205(a)(2) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/gm5-to-amc4-ats-or-205-a-2-safety-assessment-and-assurance-of-changes-to-the)

    ASSURANCE — SWAL COORDINATION (a) Within the scope of this Regulation, only the ATS provider can identify hazards, assess the associated risks and…

22. ## [GM1 to AMC1 ATS.OR.205(b)(4) Safety assessment and assurance of changes to the functional system](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/gm1-to-amc1-ats-or-205-b-4-safety-assessment-and-assurance-of-changes-to-the)

    RISK ANALYSIS IN TERMS OF PROXIES — EXAMPLES Point (c) of AMC1 ATS.OR.205(b)(2) allows safety assessment to be performed in terms of risk, proxies or a…

23. ## [ATS.OR.210 Safety criteria](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-210)

    An air traffic services provider shall determine the safety acceptability of a change to a functional system, based on the analysis of the risks posed by…

    [AMC1 ATS.OR.210(a) Safety criteria](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-210#amc1-ats-or-210-a)

    [AMC2 ATS.OR.210(a) Safety criteria](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-210#amc2-ats-or-210-a)

    [GM1 ATS.OR.210(a) Safety criteria](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-210#gm1-ats-or-210-a)

24. ## [ATS.OR.215 Licensing and medical certification requirements for air traffic controllers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-215)

    An air traffic services provider shall ensure that air traffic controllers are properly licensed and hold a valid medical certificate, in accordance with…

25. ## [ATS.OR.300 Scope](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-300)

    This section establishes the requirements to be met by the air traffic control service provider with regard to human performance in order to:

26. ## [ATS.OR.305 Responsibilities of air traffic control service providers with regard to the problematic use of psychoactive substances by air traffic controllers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-305)

    An air traffic control service provider shall develop and implement a policy, with related procedures, in order to ensure that the problematic use of…

    [AMC1 ATS.OR.305(a) Responsibilities of air traffic control service providers with regard to the problematic use of psychoactive substances by air traffic controllers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-305#amc1-ats-or-305-a)

    [GM1 ATS.OR.305(a) Responsibilities of air traffic control service providers with regard to the problematic use of psychoactive substances by air traffic controllers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-305#gm1-ats-or-305-a)

    [GM2 ATS.OR.305(a) Responsibilities of air traffic control service providers with regard to the problematic use of psychoactive substances by air traffic controllers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-305#gm2-ats-or-305-a)

    [AMC1 ATS.OR.305(b) Responsibilities of air traffic control service providers with regard to the problematic use of psychoactive substances by air traffic controllers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-305#amc1-ats-or-305-b)

    [GM1 ATS.OR.305(b) Responsibilities of air traffic control service providers with regard to the problematic use of psychoactive substances by air traffic controllers](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-305#gm1-ats-or-305-b)

27. ## [ATS.OR.310 Stress](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-310)

    In accordance with point ATS.OR.200, an air traffic control service provider shall:

    [GM1 ATS.OR.310 Stress](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-310#gm1-ats-or-310)

    [AMC1 ATS.OR.310(a) Stress](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-310#amc1-ats-or-310-a)

    [GM1 ATS.OR.310(a) Stress](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-310#gm1-ats-or-310-a)

    [GM1 ATS.OR.310(b) Stress](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-310#gm1-ats-or-310-b)

28. ## [ATS.OR.315 Fatigue](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-315)

    In accordance with point ATS.OR.200, an air traffic control service provider shall:

    [GM1 ATS.OR.315 Fatigue](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-315#gm1-ats-or-315)

    [AMC1 ATS.OR.315(a) Fatigue](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-315#amc1-ats-or-315-a)

    [GM1 ATS.OR.315(b) Fatigue](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-315#gm1-ats-or-315-b)

    [GM2 ATS.OR.315(b) Fatigue](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-315#gm2-ats-or-315-b)

29. ## [GM1 to AMC1 ATS.OR.315(a) Fatigue](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/gm1-to-amc1-ats-or-315-a-fatigue)

    FATIGUE TAXONOMY When establishing procedures to enable air traffic controllers to report when fatigued, an associated taxonomy for fatigue should be…

30. ## [GM2 to AMC1 ATS.OR.315(a) Fatigue](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/gm2-to-amc1-ats-or-315-a-fatigue)

    FATIGUE IN OCCURRENCE INVESTIGATION AND ANALYSIS Fatigue may have a significant impact on the performance of air traffic controllers and consequently on…

31. ## [GM3 to AMC1 ATS.OR.315(a) Fatigue](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/gm3-to-amc1-ats-or-315-a-fatigue)

    IDENTIFICATION AND MANAGEMENT OF THE EFFECT OF FATIGUE ON THE SAFETY OF OPERATIONS (a) The following non exhaustive list contains some of the initiatives…

32. ## [ATS.OR.320 Air traffic controllers' rostering system(s)](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-320)

    An air traffic control service provider shall develop, implement and monitor a rostering system in order to manage the risks of occupational fatigue of…

    [GM1 ATS.OR.320(a) Air traffic controllers’ rostering system(s)](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-320#gm1-ats-or-320-a)

    [AMC1 ATS.OR.320(a)(6) ;(7) Air traffic controllers’ rostering system(s)](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-320#amc1-ats-or-320-a-6)

    [GM1 ATS.OR.320(b) Air traffic controllers’ rostering system(s)](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-320#gm1-ats-or-320-b)

33. ## [ATS.OR.400 Aeronautical mobile service (air-ground communications) – general](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-400)

    An air traffic services provider shall use voice or data link, or both, in air–ground communications for air traffic services purposes.

    [GM1 ATS.OR.400(a) Aeronautical mobile service (air-ground communications) — general](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-400#gm1-ats-or-400-a)

34. ## [ATS.OR.405 Use and availability of the VHF emergency frequency](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-405)

    As laid down in Article 3d, the VHF emergency frequency (121,500 MHz) shall be used for genuine emergency purposes, including any of the following:

    [GM1 ATS.OR.405 Use and availability of the VHF emergency frequency](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-405#gm1-ats-or-405)

    [GM1 ATS.OR.405(a)(3) Use and availability of the VHF emergency frequency](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-405#gm1-ats-or-405-a-3)

    [GM1 ATS.OR.405(b) Use and availability of the VHF emergency frequency](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-405#gm1-ats-or-405-b)

35. ## [ATS.OR.410 Aeronautical mobile service (air-ground communications) – flight information service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-410)

    An air traffic services provider shall ensure, to the practicable extent and as approved by the competent authority, that air-ground communication…

    [GM1 ATS.OR.410(a) Aeronautical mobile service (air-ground communications) — flight information service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-410#gm1-ats-or-410-a)

36. ## [ATS.OR.415 Aeronautical mobile service (air-ground communications) – area control service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-415)

    An air traffic services provider shall ensure that: air–ground communication facilities enable two-way voice communications to take place between a unit…

    [AMC1 ATS.OR.415 Aeronautical mobile service (air-ground communications) — area control service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-415#amc1-ats-or-415)

    [GM1 ATS.OR.415 Aeronautical mobile service (air-ground communications) — area control service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-415#gm1-ats-or-415)

37. ## [ATS.OR.420 Aeronautical mobile service (air-ground communications) – approach control service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-420)

    An air traffic services provider shall ensure that air-ground communication facilities enable direct, rapid, continuous and static-free two-way…

38. ## [ATS.OR.425 Aeronautical mobile service (air-ground communications) – aerodrome control service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-425)

    An air traffic services provider shall ensure that air-ground communication facilities enable direct, rapid, continuous and static-free two-way…

    [GM1 ATS.OR.425(b) Aeronautical mobile service (air-ground communications) — aerodrome control service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-425#gm1-ats-or-425-b)

39. ## [ATS.OR.430 Aeronautical fixed service (ground-ground communications) – general](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-430)

    An air traffic services provider shall ensure that direct-speech or data link communications, or both, are used in ground–ground communications for air…

    [GM1 ATS.OR.430(a) Aeronautical fixed service (ground-ground communications) — general](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-430#gm1-ats-or-430-a)

    [GM1 ATS.OR.430(b) Aeronautical fixed service (ground-ground communications) — general](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-430#gm1-ats-or-430-b)

40. ## [ATS.OR.435 Aeronautical fixed service (ground-ground communications) – communication within a flight information region](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-435)

    Communications between air traffic services units (1) An air traffic services provider shall ensure that a flight information centre has facilities for…

    [GM1 ATS.OR.435(a) Aeronautical fixed service (ground-ground communications) — communication within a flight information region](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-435#gm1-ats-or-435-a)

    [GM1 ATS.OR.435(a) ;(b) Aeronautical fixed service (ground-ground communications) — communication within a flight information region](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-435#gm1-ats-or-435-a-2)

    [GM1 ATS.OR.435(c)(4) Aeronautical fixed service (ground-ground communications) — communication within a flight information region](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-435#gm1-ats-or-435-c-4)

41. ## [ATS.OR.440 Aeronautical fixed service (ground-ground communications) – communication between flight information regions](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-440)

    An air traffic services provider shall ensure that flight information centres and area control centres have facilities for communications with all…

    [GM1 ATS.OR.440(d) Aeronautical fixed service (ground-ground communications) — communication between flight information regions](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-440#gm1-ats-or-440-d)

42. ## [ATS.OR.445 Communications for the control or management of vehicles other than aircraft on manoeuvring areas at aerodromes](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-445)

    Except where communication by a system of visual signals is deemed to be adequate, an air traffic services provider shall ensure two-way radiotelephony…

    [GM1 ATS.OR.445(a) Communications for the control or management of vehicles other than aircraft on manoeuvring areas at aerodromes](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-445#gm1-ats-or-445-a)

43. ## [ATS.OR.446 Surveillance data](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-446)

    Air traffic services providers shall not use data from Mode S interrogators that operate under the responsibility of a third country if the allocation of…

44. ## [ATS.OR.450 Automatic recording of surveillance data](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-450)

    An air traffic services provider shall ensure that surveillance data from primary and secondary radar equipment or other systems (e.g.

    [GM1 ATS.OR.450 Automatic recording of surveillance data](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-450#gm1-ats-or-450)

45. ## [ATS.OR.455 Retention of recorded information and data](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-455)

    An air traffic services provider shall retain for a period of at least 30 days the following:

46. ## [ATS.OR.460 Background communication and aural environment recording](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-460)

    Unless otherwise prescribed by the competent authority, air traffic services units shall be equipped with devices that record background communication…

47. ## [ATS.OR.500 Meteorological information – General](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-500)

    An air traffic services provider shall ensure that up-to-date information on existing and forecast meteorological conditions is made available to the…

48. ## [ATS.OR.505 Meteorological information for flight information centres and area control centres](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-505)

    An air traffic services provider shall ensure that flight information centres and area control centres are supplied with the meteorological information…

    [GM1 ATS.OR.505(a) Meteorological information for flight information centres and area control centres](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-505#gm1-ats-or-505-a)

49. ## [ATS.OR.510 Meteorological information for units providing approach control service](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-510)

    An air traffic services provider shall ensure that units providing approach control service are supplied with meteorological information for the airspace…

50. ## [ATS.OR.515 Meteorological information for aerodrome control towers and AFIS units](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-515)

    An air traffic services provider shall ensure that aerodrome control towers and, unless otherwise prescribed by the competent authority, AFIS units are…

51. ## [ATS.OR.520 Information on aerodrome conditions and the operational status of associated facilities](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-520)

    An air traffic services provider shall ensure that aerodrome control towers, AFIS units and units providing approach control service are kept currently…

52. ## [ATS.OR.525 Information on the operational status of navigation services](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-525)

    An air traffic services provider shall ensure that air traffic services units are kept currently and timely informed of the operational status of radio…

    [GM1 ATS.OR.525(a) Information on the operational status of navigation services](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-525#gm1-ats-or-525-a)

    [AMC1 ATS.OR.525(b) Information on the operational status of navigation services](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-525#amc1-ats-or-525-b)

    [GM1 ATS.OR.525(b) Information on the operational status of navigation services](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-525#gm1-ats-or-525-b)

53. ## [ATS.OR.530 Forwarding of braking action information](https://avioverse.aero/regulations/easa/atm-ans/part-ats/subpart-a/ats-or-530)

    If an air traffic services provider receives by a voice communication a special air-report concerning braking action which does not correspond to what…

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.

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