General unit Operating Procedures

Introduction

Chapter 1 Provision of Air Traffic Services

1.1 Roles and Responsibilities
1.2 ATS Surveillance Systems
1.3 Assumptions of Aircraft Equipment
1.4 Position Reports
1.5 Oceanic Clearance
1.6 Selective Calling (SELCAL)

Chapter 2 Separation Standards

2.1 General
2.2 Vertical Separation
2.3 Lateral Separation
2.4 Longitudinal Separation

Chapter 3 Altimeter Setting Procedures and Meteorology

3.1 Altimeter Setting Procedures

Chapter 4 General Coordination Regulation

4.1 Deemed Coordination of Traffic Between Shanwick and Gander
4.2 Deemed Coordination of En-Route Traffic Entering the OCA
4.3 Deemed Coordination of En-Route Traffic Leaving the OCA
4.4 Transfer of Control and Communication
4.5 Coordination of Direct Routings

Chapter 5 Route Structures

5.1 Organised Track System (OTS)
5.2 Tango Routes
5.3 North American Routes

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Last update: January 3, 2025