Document ID: chunk:federal_register_of_legislation:F2023C00696:body:0:p76
Version: federal_register_of_legislation:F2023C00696
Segment Type: other
Provision Reference: 
Character Range: 282924–285950

of where the confliction will occur. However, this obligation ceases when the pilot reports "CHANGING CTAF" or that he or she is changing to the MULTICOM frequency.

Chapter 12:   Information Transfer

Section 12.1:   General

12.1.1              Validity of an ATC Clearance

12.1.1.1         An ATC clearance, and its amendments during the flight apply only:

(a)         to the first point at which the aircraft leaves controlled airspace; or

(b)         to the first landing point if the flight is wholly within controlled airspace; or

(c)          to the clearance limit if issued; or

(d)         until the expiration of a clearance void time; or

(e)         until cancelled by a controller.

12.1.2              Level Assignment

12.1.2.1         Clearances issued must enable the pilot to comply with CAR 157.

12.1.2.2         Block Level Clearances must not be issued to:

(a)         civil aircraft in Class E airspace; or

(b)         aircraft to which the Mach Number Technique has been applied.

12.1.2.3         Unless ATC instructs otherwise, a pilot intending to land at an aerodrome within Class D airspace may descend to join the aerodrome traffic circuit after he or she has established 2-way communications with the Tower.

12.1.3              Clearances for Special VFR Aircraft

12.1.3.1         At pilot request, a SPECIAL VFR clearance may be issued for a VFR flight when:

(a)         within a control zone;

(b)         in a control area next to a control zone for the purpose of entering or leaving the zone;

(c)          by day;

(d)         when VMC do not exist; and

(e)         an IFR flight will not be unduly delayed.

12.1.3.2         In the application of Special VFR, the following are Australian requirements, which differ from those stated in ICAO PANS-ATM:

(a)         Special VFR is not available in Class E airspace.

(b)         Visibility assessment is the responsibility of the pilot.

12.1.4              Clearances Below LSALT

12.1.4.1         A pilot may be assigned a level below the LSALT provided that:

(a)         the pilot has reported "VISUAL"; and

(b)         "VISUAL" is appended to the level assigned; and

(c)          by night, the clearance is prefixed with "WHEN ESTABLISHED IN THE CIRCLING AREA".

12.1.4.2         ATC may authorise operations below the LSALT to the pilot of a military or Coastwatch flight when requested by the pilot of the operation for operational reasons. This procedure does not substitute for the conditions of a visual approach at night.

12.1.5              Clearance Limits

12.1.5.1         When a clearance limit is cancelled, an onwards clearance specifying the level and route to be flown from that point must be issued.

12.1.5.2         A description of a holding path to be flown at the clearance limit is not required when:

(a)         the holding point is published in aeronautical documents;

(b)         a clearance limit has been imposed temporarily and it is expected that the requirement to hold will have elapsed