scope:

This specification sets forth the functional requirements for a national Direct User Access Terminal (DUAT) Service. The DUAT Service, which is a part of the National Airspace System (NAS) modernization program, shall enable an authorized user to use a computer terminal or a personal computer to obtain a weather briefing and to file, amend or cancel a flight plan. The contractor will be given direct access to the Federal Aviation Administration (FAA) computers at the Air Route Traffic Control Centers (ARTCC) and to Flight Service Stations (FSS) via the National Airspace Data Interchange Network (NADIN IA). This specification requires the contractor to comply with all technical and procedural requirements and restrictions specified by the FAA with regard to the NADIN IA Interface.