The Air Navigation Services Division is responsible to the Jamaica Civil Aviation Authority (JCAA) for:- Air Traffic Services; ATS Training; Quality Assurance; Aeronautical Information Services; Obstacle Evaluation & Procedures Development ; Aeronautical Meteorology; Aeronautical Telecommunications; Aeronautical Search & Rescue. The division is headed by a Director who is supported by Managers, Engineers and other Technical Officers.

The Air Navigation Service Division ensures that the level of air traffic services (ATS) and communications, navigation and surveillance as well as ATS procedures are operated in accordance with international standards and are adequate for maintaining an acceptable level of safety in the airspace or on the aerodrome.

Training for personnel attached to the Air Traffic Services and Aeronautical Information Services Departments is provided by the Civil Aviation Authority Training Institute (CAATI). CAATI also offers air traffic control training courses to international clients in radar and non radar procedures.

The Aeronautical Information Services Department (AIS) is established to collect and disseminate aeronautical information to flight operations personnel and to other services, local and overseas that are responsible for dissemination of flight information. This information is contained in Notices to Airmen (NOTAMS), Aeronautical Information Publications (AIPS), AIP Supplements and Aeronautical Information Circulars (AICs).

The provision of Aeronautical Meteorology is delegated to the Meteorological Services Division of the Ministry of Ministry of Water and Housing; Aeronautical Search & Rescue is delegated to the Jamaica Defense Force - Coastguard, as per Memoranda of Understanding with the Jamaica Civil Aviation Authority (JCAA).