25 NM CEP

1 Aircraft flight notification must indicate RNP10 or RNP4.

2 Only useable for separation with the 25 NM CEP tolerance of another RNP10 or RNP4 aircraft.

3 1 NM buffer between tolerances is not required.

14 NM CEP

1 Not useable in airspace designated OCA.

2 Aircraft flight notification must indicate AUSEP, RNP10 or RNP4.

7 NM CEP

1 Not useable in airspace designated OCA.

2 Aircraft flight notification must indicate GPSRNAV or GPSOCEANIC.

Expanding formula

1 Not useable in airspace designated OCA.

2 Aircraft flight notification must indicate:

 (a) INS/IRS; and

 (b) AUSEP, RNP10 or RNP4.

3 CEP tolerance is a circle of radius:

 (a) 3 NM on departure, or 4 NM at each update; and

 (b) expanding at a rate of 3 NM per hour since departure or update, to a maximum of 14 NM radius.

4 Any lateral separation diagram so produced must be approved by the ATS provider.

5 Unless informed otherwise, ATC may assume update when 1 of the following occurs:

 (a) aircraft passage within 180 NM of 2 DME stations for a DME/DME fix where the position lines cross at an angle between 30° and 150°;

 (b) aircraft passage within 25 NM of a collocated VOR/DME beacon;

 (c) aircraft passage over a VOR beacon at or below FL200.

± 30 NM Cross track

Aircraft flight notification must indicate:

 (a) INS/IRS; and

 (b) AUSEP, RNP10 or RNP4.

±15 NM Cross track

1 Aircraft flight notification must indicate:

 (a) INS/IRS; and

 (b) AUSEP, RNP10 or RNP4.

2 The update interval (that is, the flight time since departure or a waypoint suitable for updating present position) does not exceed:

 (a) for aircraft equipped with single INS/IRS — 3 hours; or

 (b) for aircraft with 2 or more INS/IRS — 5 hours.