Versions of 49 CFR Part 392 - Driving of Commercial Motor Vehicles on LawServer 2024 49 CFR Part 392 – Driving of Commercial Motor Vehicles 2023 49 CFR PART 392 – DRIVING OF COMMERCIAL MOTOR VEHICLES 2022 49 CFR Part 392 – Driving of Commercial Motor Vehicles 2021 49 CFR Part 392 – Driving of Commercial Motor Vehicles 2020 49 CFR Part 392 – Driving of Commercial Motor Vehicles