Versions of 6 CFR 3.5 - Format and mailing instructions on LawServer 2024 6 CFR 3.5 – Format and mailing instructions 2023 6 CFR 3.5 – Format and mailing instructions 2022 6 CFR 3.5 – Format and mailing instructions 2021 6 CFR 3.5 – Format and mailing instructions 2020 6 CFR 3.5 – Format and mailing instructions 2019 6 CFR 3.5 – Format and mailing instructions 2016 6 CFR 3.5 – Format and mailing instructions