Pilot/Controller Glossary

PURPOSE

1. This Glossary was compiled to promote a common understanding of the terms used in the Air Traffic Control system. It includes those terms which are intended for pilot/controller communications. Those terms most frequently used in pilot/controller communications are printed in bold italics. The definitions are primarily defined in an operational sense applicable to both users and operators of the National Airspace System. Use of the Glossary will preclude any misunderstandings concerning the system's design, function, and purpose.
2. Because of the international nature of flying, terms used in the Lexicon, published by the International Civil Aviation Organization (ICAO), are included when they differ from FAA definitions. These terms are followed by “[ICAO].” For the reader's convenience, there are also cross references to related terms in other parts of the Glossary and to other documents, such as the Code of Federal Regulations (CFR) and the Aeronautical Information Manual (AIM).
3. This Glossary will be revised, as necessary, to maintain a common understanding of the system.

EXPLANATION OF CHANGES

1. Terms Added:
   ADVANCED AIR MOBILITY (AAM)
   ADVISORY CIRCULAR (AC)
   AIR TRAFFIC ORGANIZATION (ATO)
   B4UFLY
   BEYOND VISUAL LINE OF SIGHT (BVLOS)
   CIVIL AIRCRAFT OPERATION (CAO)
   COMMUNITY-BASED ORGANIZATION (CBO)
   CREWMEMBER (UAS)
   FAA-RECOGNIZED IDENTIFICATION AREA (FRIA)
   FIRST PERSON VIEW
   GRAPHICAL AIRMEN’S METEOROLOGICAL INFORMATION
   HAZARDOUS MATERIALS (HAZMAT) LOW ALTITUDE AUTHORIZATION AND NOTIFICATION CAPABILITY (LAANC)
   MAXIMUM GROSS OPERATING WEIGHT (MGOW)
   OPERATIONS OVER PEOPLE (OOP)
   OPERATOR (UAS)
   PUBLIC AIRCRAFT OPERATION (PAO) RADIO-CONTROLLED (RC)
   RECREATIONAL FLYER
   REMOTE IDENTIFICATION (RID)
   REMOTE PILOT
   RNAV VISUAL FLIGHT PROCEDURE (RVFP)
   SENSE AND AVOID (SAA)
   SPECIAL GOVERNMENT INTEREST (SGI) THE RECREATIONAL UAS SAFETY TEST (TRUST)
   UAS FACILITY MAP (UASFM)
   UAS TEST SITE
   UAS TRAFFIC MANAGEMENT (UTM)
   URBAN AIR MOBILITY (UAM)
   VISUAL LINE OF SIGHT (VLOS)
2. Terms Deleted:
   CURRENT PLAN
3. Terms Modified:
   AIRMEN'S METEOROLOGICAL INFORMATION (AIRMET)
   CENTER WEATHER ADVISORY
   CONVECTIVE SIGMET
   HAZARDOUS WEATHER INFORMATION
   MOSAIC/MULTI-SENSOR MODE
   SEVERE WEATHER FORECAST ALERTS
   SIGMET
   SPECIAL ACTIVITY AIRSPACE (SAA)
   WEATHER ADVISORY
4. Editorial/format changes were made where necessary. Revision bars were not used due to the insignificant nature of the changes.