CFR›Title 31›Subtitle B›Chapter II›Part 203 ContainsSubparts A–DCorpusDaily eCFRDisplayed edition2026-04-28Last updated2026-04-28 PART 203—PAYMENT OF FEDERAL TAXES AND THE TREASURY TAX AND LOAN PROGRAM Subparts A Subpart A—General Information Sections 203.1–203.8 B Subpart B—Electronic Federal Tax Payments Sections 203.9–203.13 C Subpart C—PATAX Sections 203.14–203.17 D Subpart D—Investment Program and Collateral Security Requirements for TT&L Depositaries Sections 203.18–203.21 Authority12 U.S.C. 90,265-266, 332, 391, 1452(d), 1464(k), 1767, 1789a, 2013, 2122, and 3102; 26 U.S.C. 6302; 31 U.S.C. 321, 323, and 3301-3304.Source72 FR 59181, Oct. 19, 2007, unless otherwise noted. Previous 202 Part 202—Depositaries and Financial Agents of the Federal Government Next 205 Part 205—Rules and Procedures for Efficient Federal-State Funds Transfers