2024 23 CFR 1300.4 – State highway safety agency–authority and functions

2023 23 CFR 1300.4 – State highway safety agency – authority and functions

2022 23 CFR 1300.4 – State Highway Safety Agency – authority and functions

2021 23 CFR 1300.4 – State Highway Safety Agency – authority and functions

2020 23 CFR 1300.4 – State Highway Safety Agency–authority and functions

2019 23 CFR 1300.4 – State Highway Safety Agency–authority and functions

2016 23 CFR 1300.4 – State Highway Safety Agency–authority and functions