Versions of 31 CFR Part 309 - Issue and Sale of Treasury Bills on LawServer 2024 31 CFR Part 309 – Issue and Sale of Treasury Bills 2023 31 CFR PART 309 – ISSUE AND SALE OF TREASURY BILLS 2022 31 CFR Part 309 – Issue and Sale of Treasury Bills 2021 31 CFR Part 309 – Issue and Sale of Treasury Bills 2020 31 CFR Part 309 – Issue and Sale of Treasury Bills