Versions of 49 USC 506 - Authority to investigate on LawServer 2024 49 USC 506 – Authority to investigate 2023 49 USC 506 – Authority to investigate 2022 49 USC 506 – Authority to investigate 2021 49 USC 506 – Authority to investigate 2020 49 USC 506 – Authority to investigate 2018 49 USC 506 – Authority to investigate