1. The primary purpose of the Near Midair Collision (NMAC) Reporting Program is to provide information for use in enhancing the safety and efficiency of the National Airspace System.a. Data obtained from NMAC reports are used by the FAA to improve the quality of FAA services to users and to develop programs, policies, and procedures aimed at the reduction of NMAC occurrences.

2. A near midair collision is defined as an incident associated with the operation of an aircraft in which a possibility of collision occurs as a result of proximity of less than 500 feet to another aircraft, or a report is received from a pilot or a flight crew member stating that a collision hazard existed between two or more aircraft.

3. It is the responsibility of the pilot and/or flight crew to determine whether a near midair collision did actually occur and, if so, to initiate an NMAC report.a. Be specific, as ATC will not interpret a casual remark to mean that an NMAC is being reported. The pilot should state, “I wish to report a near midair collision.”

4. Pilots and/or flight crew members involved in NMAC occurrences are urged to report each incident immediatelya. By radio or telephone to the nearest FAA ATC facility or FSS.b. In writing, in lieu of the above, to the responsible Flight Standards office.

5. The Flight Standards office in whose area the incident occurred is responsible for the investigation and reporting of NMACs.