Versions of 33 CFR Part 117 - Drawbridge Operation Regulations on LawServer 2024 33 CFR Part 117 – Drawbridge Operation Regulations 2023 33 CFR PART 117 – DRAWBRIDGE OPERATION REGULATIONS 2022 33 CFR Part 117 – Drawbridge Operation Regulations 2021 33 CFR Part 117 – Drawbridge Operation Regulations 2020 33 CFR Part 117 – Drawbridge Operation Regulations