2024 CFR > Title 43 > Subtitle B > Chapter II > Subchapter C > Part 3620 > Subpart 3622 – Free Use of Petrified Wood

2023 CFR > Title 43 > Subtitle B > CHAPTER II > SUBCHAPTER C > PART 3620 > Subpart 3622 – Free Use of Petrified Wood

2022 CFR > Title 43 > Subtitle B > Chapter II > Subchapter C > Part 3620 > Subpart 3622 – Free Use of Petrified Wood

2020 CFR > Title 43 > Subtitle B > Chapter II > Subchapter C > Part 3620 > Subpart 3622 – Free Use of Petrified Wood

2019 CFR > Title 43 > Subtitle B > Chapter II > Subchapter C > Part 3620 > Subpart 3622 – Free Use of Petrified Wood

2016 CFR > Title 43 > Subtitle B > Chapter II > Subchapter C > Part 3620 > Subpart 3622 – Free Use of Petrified Wood

2015 CFR > Title 43 > Subtitle B > Chapter II > Subchapter C > Part 3620 > Subpart 3622 – Free Use of Petrified Wood

2014 CFR > Title 43 > Subtitle B > Chapter II > Subchapter C > Part 3620 > Subpart 3622 – Free Use of Petrified Wood