ABCDEFGHIJKLMNOPQRSTUVWXYZ# A Above Ground Level (AGL) Aerial Photography and Video Anemometer Back to top B B4UFLY Back to top C Civil Twilight COA Controlled airspace Crew Resource Management (CRM) Back to top D DAA Drone Zone Back to top F FRZ (Washington DC area) Back to top G Ground Speed Back to top I IACRA Indicated Airspeed (IAS) Inspections Back to top L LAANC LIDAR Back to top M MTR Back to top P Part 107 Photogrammetry Back to top R Remote Pilot Airmen Remote Pilot In Command (RPIC) Back to top S Section 349 Section 44809 (Recreational Rules) Space Act Agreement (SAA) sUAS Back to top T TFR Thermal Imaging Back to top U UASFM Urban Air Mobility (UAM) USS Back to top V Visual Line Of Sight Visual Observer Back to top # 333 Exemption Back to top