Implementation of Performance Based
Separation Minima in the North Atlantic A NAT OPS Bulletin on Implementation of Performance Based Separation Minima in the North Atlantic has
been issued today – 06 February 2018. The purpose of the bulletin is to provide guidance to North Atlantic
(NAT) operators on material to be included in pilot and dispatch training programs and operations manuals to
prepare them for operations in the NAT Region under performance based separation minima. Overview: Performance Based Separation Minima
Performance based separation minima of 42.6km (23 NM) lateral, 5 minutes and 55.5km (30NM) / 93km (50
NM) longitudinal predicated on PBCS and PBN, in accordance with ICAO Doc 4444 Procedures for Air Navigation
Services – Air Traffic Management (PANS-ATM) are planned for implementation in the ICAO NAT
Region commencing 29 March 2018. Appropriate AIP/AIC publications will be issued by States in due time
prior to commencement. The full details of the application can be found in:
NAT OPS Bulletin 2018_01, Implementation of Performance Based Separation Minima ©2018 The International Federation of Air Line Pilots’ Associations
IFALPA provides this data for information only, in all cases pilots should follow their company’s guidance and procedures. In the interests of flight safety, reproduction of this publication in
whole or in part is encouraged. It may not be offered of sale or used commercially.
All reprints must credit IFALPA. | 
