Versions of 31 CFR 16.4 - Investigation on LawServer 2024 31 CFR 16.4 – Investigation 2023 31 CFR 16.4 – Investigation 2022 31 CFR 16.4 – Investigation 2021 31 CFR 16.4 – Investigation 2020 31 CFR 16.4 – Investigation 2019 31 CFR 16.4 – Investigation 2016 31 CFR 16.4 – Investigation 2015 31 CFR 16.4 – Investigation 2014 31 CFR 16.4 – Investigation