Document ID: chunk:federal_register_of_legislation:F2024C00954:reg:4
Version: federal_register_of_legislation:F2024C00954
Segment Type: reg
Provision Reference: reg 4
Character Range: 5574–6300

4  Ascertainment of OLS and PANS‑OPS surfaces
 (1) An OLS for an airport is a surface ascertained in accordance with the procedures in Annex 14 to the Chicago Convention.
 (2) A PANS‑OPS surface for an airport is a surface ascertained in accordance with the procedures in document number 8168 OPS—611, Procedures for Air Navigation Services, Aircraft Operations, published by the International Civil Aviation Organization on 11 November 1993.
Note: OLS has customary use as an acronym for Obstacle Limitation Surface. PANS‑OPS is an acronym for Procedures for Air Navigation Systems Operations.
 (3) In this regulation:
Chicago Convention has the same meaning as in the Air Navigation Act 1920.

Part 2—Prescribed airspace