Final answer:
Operating Instructions (OI), Technical Orders (TO), and Wing Instructions (WI) are publications written at a lower organizational level.
Step-by-step explanation:
Publications that are usually written at a lower organizational level, such as the squadron and flight level, include Operating Instructions (OI), Technical Orders (TO), and Wing Instructions (WI). These publications provide specific guidance and instructions for the operations and management of a squadron or flight. Joint Publications (JP), on the other hand, are written at a higher level and provide guidance for multiple organizations.