Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p195
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 195/225)
Character Range: 822199–824990

system and the configuration of the particular environment.

Note 2   A critical area may be separately established for vehicles and aircraft of particular sizes.

       (4) The aerodrome operator must liaise with the relevant navigation service and facility provider to ensure that the boundaries of each ILS critical area are marked by suitable signs and visual markers to prevent unauthorised access from vehicles and persons.

       (5) The aerodrome operator must place signs at each road access point to an ILS critical area to warn drivers and pedestrians against entering the area without authority.

       (6) The aerodrome operator must not permit:

(a) vehicles and plant to enter, or remain in, an ILS critical area while the ILS is in use; or

(b) construction access or variation to such access within an ILS critical area unless the access or variation has been coordinated with the relevant navigation service and facility provider.

       (7) When vehicle access to an ILS critical area is required for a particular purpose, an aerodrome operator must:

(a) liaise with the navigation service and facility provider for the ILS to be temporarily withdrawn from service, unless otherwise authorised by ATC; and

(b) arrange for notification via ATC or via a NOTAM (as applicable) to inform pilots of the temporary withdrawal.

Note 1   Access to the ILS critical area would come under control where ATC is provided.

Note 2   An example of a particular purpose is grass cutting or other vegetation management activities.

       (8) If low-visibility procedures are in effect at an aerodrome, the aerodrome operator must not permit vehicles or plant to enter, or remain in, an ILS critical area unless ATC has given the operator specific clearance for the vehicles or plant to enter or remain.

19.07 Protection of marker beacons

        For marker beacons, an aerodrome operator must refer the following for assessment by the navigation service and facility provider responsible for the beacons:

(a) any proposal for development within 5 m of the marker beacon antenna;

(b) any proposal for development between 5 m and 50 m from the marker beacon antenna that exceeds an angle of elevation of 50° measured from ground level at the base of the marker beacon antenna.

19.08 Protection of non-directional beacons (NDBs)

       (1) For NDBs, an aerodrome operator must refer the following for assessment by the navigation service and facility provider responsible for the NDB:

(a) any proposal for development within 60 m of the NDB antenna;

(b) any proposal for development between 60 m and 300 m from the centre of the NDB antenna that exceeds an angle of elevation of 5° from ground level at the centre of the NDB antenna.

Note   Within 60 m of the centre of the