Treasury Decision February 15, 2015 by John Baer Treasury Decision About Treasury Decision: A Treasury Decision (T.D.) is a final U.S. Treasury regulation. Related Entries in the American Tax Encyclopedia: Landmark Decision Treasury Bill Treasury Decisions Treasury Note Treasury Bond Treasury Stock Certificate of Accrual on Treasury Securities Treasury Regulations U.S. Treasury Department Preamble Determination Temporary Regulation Transaction Memorandum Opinion Reconsideration Son-of-mirror Regulation Loss Group Controlled Abbreviations Citator Loss Subgroup Technical Advice Memoranda Independent Director Writ of Certiorari Consumer Products