Versions of 29 CFR 22.4 - Investigation on LawServer 2024 29 CFR 22.4 – Investigation 2023 29 CFR 22.4 – Investigation 2022 29 CFR 22.4 – Investigation 2021 29 CFR 22.4 – Investigation 2020 29 CFR 22.4 – Investigation 2019 29 CFR 22.4 – Investigation 2016 29 CFR 22.4 – Investigation 2015 29 CFR 22.4 – Investigation 2014 29 CFR 22.4 – Investigation