Remotely Piloted Aircraft Systems (RPAS) Circulars AC 28-003 – GUIDELINES ON PRESENTATION OF AN RPAS CONCEPT OF OPERATIONS (CONOPS) TO GCAA AC 28-012 – REMOTELY PILOTED AIRCRAFT SYSTEM (RPAS) IMPORTATION PROCESS AC 28-013 – REMOTELY PILOTED AIRCRAFT SYSTEM (RPAS) REMOTE REGISTRATION RENEWAL PROCESS RPAS SANCTIONS UTM COMMON FRAMEWORK FOR NATIONAL HARMONIZATION