CNS.TR.205 Allocation and use of Mode S interrogator codes

(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(3)superseded allocation references, as required;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.