Document ID: chunk:federal_register_of_legislation:F2023C00696:body:0:p35
Version: federal_register_of_legislation:F2023C00696
Segment Type: other
Provision Reference: 
Character Range: 98688–101760

from adjacent sectors by the appropriate separation standard.

10.5.4.3         Except when the transfer of control is to occur, or when coordination has been performed with an adjoining sector, an appropriate tolerance must be applied to system map boundaries to ensure the separation of aircraft operating on either side of the boundary.

10.5.4.4         If an airspace boundary in ATS surveillance system coverage divides 2 sectors, aircraft must not be vectored closer than half the applicable ATS surveillance system horizontal separation minimum from the displayed system map boundary. However, the reduction to half the applicable ATS surveillance system horizontal separation may only be used if:

(a)         the adjacent sector, in controlled airspace, has the same ATS surveillance system processing and display system; or

(b)         the restricted area flying activity is subject to the ADF:

(i)            applying half the applicable ATS surveillance system horizontal separation minimum between aircraft in the restricted area and the restricted area boundary; or

(ii)          ensuring that an appropriate navigation tolerance is applied to aircraft operating in the restricted area (i.e. that the aircraft are contained within the restricted area); or

(c)          the restricted area non-flying activity is subject to the appropriate tolerances being applied by the restricted area user to ensure containment of the activity within the restricted area.

10.5.4.5         If different ATS surveillance system separation minima apply on either side of a boundary, aircraft must not be vectored closer to the boundary than half the larger of the 2 minima.

10.5.4.6         Unless local agreements are in place, a tolerance of not less than the applicable ATS surveillance system separation minimum must be applied to a system map boundary that divides sectors where one of the sectors is authorised to operate up to the boundary.

10.5.4.7         ATC may treat IFR aircraft or aircraft operating on a special VFR clearance (relevant aircraft) operating in Class D airspace as if they are operating under the VFR when:

(a)         the relevant aircraft is:

(i)            operating in the aerodrome circuit; and

(ii)          established on the same radio frequency as the ATC tower; and

(b)         the ATC treatment is for the purpose of separating the relevant aircraft from aircraft in adjacent Class C airspace.

10.5.5              Separation minima based on ATS surveillance systems

10.5.5.1         Subject to subsection 10.5.5.3, the horizontal separation minimum based on ATS surveillance information is:

(a)         5 NM; or

(b)         if a higher minimum applies under subsection 10.12.2.2 — that higher minimum.

10.5.5.2         Subject to subsection 10.5.5.3, the separation minimum in 10.5.5.1 may be reduced to not less than 3 NM if:

(a)         a higher minimum under 10.12.2.2 does not apply; and

(b)         the relevant aircraft are in communication with, and under the control of, a terminal control unit or associated