It stipulates terms and definitions related to general aviation exhibitions, and regulates the principles and procedures that should be followed for exhibition grade assessment.
T/AOPA 0004-2017 history
2023T/AOPA 0004-2023 Technical Specification For Light And Small Terminal Logistics UAV Air Traffic Control System
2019T/AOPA 0004-2019 Vocational Education Aircraft Maintenance Specialty Part 2 Text