26 U.S.C. § 6202 : Internal Revenue Code — Procedure And Administration — Assessment — In General — Establishment By Regulations Of Mode Or Time Of Assessment Date: 7 Mar 2017 TEXT PDF If the mode or time for the assessment of any internal revenue tax (including interest, additional amounts, additions to the tax, and assessable penalties) is not otherwise provided for, the Secretary may establish the same by regulations. (Aug. 16, 1954, ch. 736, 68A Stat. 768; Pub. L. 94–455, title XIX, § 1906(b)(13)(A), Oct. 4, 1976, 90 Stat. 1834.) Amendments 1976—Pub. L. 94–455 struck out “or his delegate” after “Secretary”.