2024 10 USC 9628 – Airplane parts and accessories: civilian flying schools

2023 10 USC 9628 – Airplane parts and accessories: civilian flying schools

2022 10 USC 9628 – Airplane parts and accessories: civilian flying schools

2021 10 USC 9628 – Airplane parts and accessories: civilian flying schools

2020 10 USC 9628 – Airplane parts and accessories: civilian flying schools

2018 10 USC 9628 – Airplane parts and accessories: civilian flying schools