2024 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart D – Operations

2023 CFR > Title 14 > CHAPTER I > SUBCHAPTER G > PART 139 > Subpart D – Operations

2022 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart D – Operations

2021 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart D – Operations

2020 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart D – Operations

2019 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart D – Operations

2015 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart D – Operations

2014 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart D – Operations