Final answer:
The Air Force technical order that covers symbols and their use is the Air Force Manual 33-363, Management of Records.
Step-by-step explanation:
The Air Force technical order (TO) that covers symbols and their use is the Air Force Manual 33-363, Management of Records. This manual includes guidelines and standards for the use of symbols in Air Force technical documents and records. It provides a standardized approach to symbol usage to ensure clear and consistent communication within the Air Force.