2024 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart B – Certification

2023 CFR > Title 14 > CHAPTER I > SUBCHAPTER G > PART 139 > Subpart B – Certification

2022 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart B – Certification

2021 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart B – Certification

2020 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart B – Certification

2019 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart B – Certification

2015 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart B – Certification

2014 CFR > Title 14 > Chapter I > Subchapter G > Part 139 > Subpart B – Certification