ANNEX VIII — Part-CNS

SPECIFIC REQUIREMENTS FOR PROVIDERS OF COMMUNICATION, NAVIGATION, OR SURVEILLANCE SERVICES

SUBPART A — ADDITIONAL ORGANISATION REQUIREMENTS FOR PROVIDERS OF COMMUNICATION, NAVIGATION, OR SURVEILLANCE SERVICES (CNS.OR)

SECTION 1 — GENERAL REQUIREMENTS

Regulation (EU) 2017/373

(a)A communication, navigation or surveillance services provider shall ensure the availability, continuity, accuracy and integrity of their services.

(b)A communication, navigation or surveillance services provider shall confirm the quality level of the services they are providing, and shall demonstrate that their equipment is regularly maintained and, where required, calibrated.

ED Decision 2021/008/R

(a)In this AMC:

(1)SAR point of contact (SPOC)’ refers to a SAR point of contact that is designated by a State to receive COSPAS-SARSAT distress data in accordance with ICAO Annex 12;

(2)‘competent SPOC’ refers to the SAR point of contact that is competent for the SAR region(s) where an aircraft in distress is indicated to be by the transmitted information; and

(3)‘transmission service for locating an aircraft in distress’ refers to a service that transmits to the competent SPOC information that is contained in signals sent by an airborne system, to comply with point CAT.GEN.MPA.210 ‘Location of an aircraft in distress’ of Annex IV (Part-CAT) to Regulation (EU) No 965/2012 (‘Air OPS Regulation’).

(b)A surveillance service provider for which EASA is the competent authority pursuant to Article 80 of Regulation (EU) No 2018/1139 (‘Basic Regulation’) may provide the transmission service as per point (a) of this AMC; in that case, the surveillance service provider should:

(1)establish the performance specifications of the transmission service as per point (a);

(2)establish a list of airborne systems that are compatible with their use for locating an aircraft in distress as specified in the Certification Specifications for Airborne Communications, Navigation and Surveillance (CS-ACNS), Subpart E, Section 3;

(3)demonstrate that the transmission service as per point (a) can:

(i)automatically process activation signals and deactivation signals that are received from any compatible airborne system that is listed as per point (b)(2) of this AMC in the conditions specified in the CS-ACNS Subpart E, Section 3; and

(ii)automatically transmit to the competent SPOC the information that is contained in those signals;

(4)demonstrate that the transmission service as per point (a) can process signals that are simultaneously transmitted by up to 15 compatible airborne systems as per point (b)(2);

(5)demonstrate that the total time from transmission of a signal by a compatible airborne system as per point (b)(2) to delivering the corresponding data to the competent SPOC does not exceed 20 minutes, with a probability of 95 %;

(6)demonstrate that the SPOC contact information that is used by the transmission service as per point (a) to meet point (b)(3) of this AMC is global and that there are processes to maintain this information up to date;

(7)deliver the data to the competent SPOC in plain text and in a format recognised by the International Aeronautical and Maritime Search and Rescue Manual (IAMSAR Manual); and

(8)perform an operational record-keeping function that:

(i)integrally records data corresponding to signals transmitted by a compatible airborne system as per point (b)(2);

(ii)retains this data for at least 30 days; and

(iii)can retrieve data that is recorded in the preceding 48 hours within 30 minutes of receiving an appropriate request.

ED Decision 2023/018/R

SURVEILLANCE SERVICES PROVIDERS

The surveillance system should meet the performance requirements that are necessary to support the provision of air traffic services (ATS). Therefore, before commissioning a new or modified surveillance system, the surveillance services providers should develop a business case to demonstrate that the proposed surveillance system is the most effective solution that safely supports the required operations and, among other elements, considers efficiency issues (e.g. through-life cost (TLC) and the 1030/1090-MHz radio frequencies (RF) band usage).

One option for the business case would be the use of ADS-B data. When comparing options regarding the 1030/1090-MHz RF band usage, surveillance services providers should consider the impact not only on their own surveillance systems but also on the neighbouring ones.

ED Decision 2023/018/R

QUALITY LEVEL OF THE SERVICES — SURVEILLANCE SERVICES PROVIDERS

(a)Surveillance services providers should assess the level of performance of the ground-based surveillance chain regularly during the service.

(b)The assessment of the level of the ongoing performance of the ATM/ANS equipment referred to in point (a) should be performed in the volume of airspace where the corresponding provision of surveillance services utilising the ATM/ANS equipment is undertaken.

(c)Surveillance services providers should periodically check the system and its components and develop and enforce a performance validation regime. The periodicity should be agreed with the national supervisory authority taking into account the specificities of the ATM/ANS equipment.

(d)Before the implementation of airspace design modification the ATM/ANS equipment should be verified in order to check that it still meets the required performance in the new volume of operation.

SUBPART B — TECHNICAL REQUIREMENTS FOR PROVIDERS OF COMMUNICATION, NAVIGATION OR SURVEILLANCE SERVICES (CNS.TR)

SECTION 1 — GENERAL REQUIREMENTS

Regulation (EU) 2017/373

A communication, navigation or surveillance services provider shall be able to demonstrate that its working methods and operating procedures are compliant with the standards of Annex 10 to the Chicago Convention on aeronautical telecommunications in the following versions as far as they are relevant to the provision of communication, navigation or surveillance services in the airspace concerned:

(a)Volume I on radio navigation aids in its 6th edition of July 2006, including all amendments up to and including No 89;

(b)Volume II on communication procedures, including those with PANS status in its 6th edition of October 2001, including all amendments up to and including No 89;

(c)Volume III on communications systems in its 2nd edition of July 2007, including all amendments up to and including No 89;

(d)Volume IV on surveillance radar and collision avoidance systems in its 4th edition of July 2007, including all amendments up to and including No 89;

(e)Volume V on aeronautical radio frequency spectrum utilisation in its 3rd edition of July 2013, including all amendments up to and including No 89.

SECTION 2 — TECHNICAL REQUIREMENTS FOR PROVIDERS OF SURVEILLANCE SERVICES

Regulation (EU) 2023/1771

(a)A surveillance services provider shall only operate an eligible Mode S interrogator, using an eligible interrogator code (IC), if it has received an interrogator code allocation, for this purpose, from the Member State concerned.

(b)A surveillance services provider that intends to operate, or operates, an eligible Mode S interrogator for which no interrogator code allocation has been received, shall submit to the Member State concerned an interrogator code application, include the following key items, as a minimum:

(1)a unique application reference from the Member State concerned;

(2)full contact details of the Member State’s representative responsible for the coordination of the Mode S interrogator code allocation;

(3)full contact details of the Mode S operator’s point of contact for Mode S IC allocation matters;

(4)Mode S interrogator name;

(5)Mode S interrogator use (operational or test);

(6)Mode S interrogator location;

(7)Mode S interrogator planned date of first Mode S transmission;

(8)requested Mode S coverage;

(9)specific operational requirements;

(10)SI code capability;

(11)“II/SI code operation” capability;

(12)coverage map capability.

(c)A surveillance services provider shall comply with the key items of the interrogator code allocations it has received, including the following items as a minimum:

(1)the corresponding application reference from the Member State concerned;

(2)a unique allocation reference from the interrogator code allocation service;

(3)superseded allocation references, as required;

(4)allocated interrogator code;

(5)surveillance and lockout coverage restrictions under the form of sectored ranges or Mode S coverage map;

(6)implementation period during which the allocation needs to be registered into the Mode S interrogator identified in the application;

(7)implementation sequence which needs to be complied with;

(8)optionally and associated with other alternatives: cluster recommendation;

(9)specific operational restrictions, as required.

(d)A surveillance services provider shall inform the Member State concerned at least every 6 months of any change in the installation planning or in the operational status of the eligible Mode S interrogators regarding any of the interrogator code allocation key items listed in point (c).

(e)The surveillance services provider shall ensure that each of their Mode S interrogators uses exclusively its allocated interrogator code.

Acceptable Means of Compliance (AMC) and Guidance Material (GM) to Part-CNS

Reserved