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6.4.3.2 According to Note 1. under the paragraph mentioned above, “the authority for establishing and providing the services may be a State or a suitable Agency”.
6.4.3.3 Furthermore, in the situation where a State delegates to another State the responsibility for the provision of ATS in a portion of the airspace above its territory, “the State which designates the authority responsible for establishing and providing the air traffic services is: the State to whom responsibility for the establishment and provision of air traffic services has been delegated”.
6.4.4 Scope of the delegation of the responsibility for the provision of ATS
6.4.4.1 The delegation of the responsibility for the provision of ATS should encompass air traffic control service, flight information service and alerting service.
6.4.4.2 Moreover, the delegation of the responsibility for the provision of ATS normally encompasses GAT traffic operating under IFR, unless otherwise specified.
6.4.4.3 Considering the fact that the Common Format LoA provides for, on an optional basis, the inclusion of co-ordination procedures for Operational Air Traffic and/or VFR traffic, the delegation may also include the responsibility for the provision of ATS to such Operational Air Traffic (OAT) and/or VFR traffic. Thus, in the event the Letter of Agreement encompasses co-ordination procedures for OAT and/or VFR traffic, and if the responsibility for the provision of ATS to OAT/VFR traffic is delegated, this shall be clearly specified also in the relevant paragraphs of the Letter of Agreement pertaining to delegation of the responsibility for the provision of ATS.
6.4.4.4 With respect to alerting service this is, according to ICAO definitions, “a service provided to notify appropriate organisations regarding aircraft in need of search and rescue aid, and assist such organisations as required”. The responsibility for the provision of alerting service will normally fall on the ATS unit responsible for the provision of ATS in the airspace concerned.
6.4.4.5 In the event of a State delegating to another State the responsibility for the provision of ATS in a portion of the airspace above its territory, the States should establish co-ordination procedures regarding the provision of search and rescue services for the territory connected with the airspace concerned.
6.4.4.6 According to the Common Format LoA, the Centre responsible for the provision of ATS, by virtue of delegation, shall provide alerting service and shall co-ordinate with the appropriate Rescue Co-ordination Centre as required.
Page 6-4 Released Issue Edition: 2.0
6.4.5 Radar separation minima
6.4.5.1 In Annex 11 to the Chicago Convention it is prescribed that “the selection of separation minima for application within a given portion of airspace shall be as follows:
a) the separation minima shall be selected from those prescribed by the provisions of the PANS-ATM and the Regional Supplementary Procedures as applicable under the prevailing circumstances except that, where types of aids are used or circumstances prevail which are not covered by current ICAO provisions, other separation minima shall be established as necessary by: b) the appropriate ATS authority, following consultation with operators, for routes and portions of routes contained within the sovereign airspace of a State”.
6.4.5.2 As regards to the radar separation minima it is prescribed in ICAO PANS-ATM (Doc 4444) Chapter 8 that “the radar separation minimum or minima to be applied shall be prescribed by the appropriate ATS authority according to the capability of the particular radar system or sensor to accurately identify the aircraft position in relation to the centre of an RPS, PSR blip or SSR response......”.
6.4.5.3 The appropriate ATS authority is, according to Annex 11 to the Chicago Convention, defined as “the relevant authority designated by the State responsible for providing air traffic services in the airspace concerned”.
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EUROCONTROL MANUAL FOR AIRSPACE PLANNING 2(126)
