The internal revenue laws, referred to in subsec. (a), are classified generally to Title 26, Internal Revenue Code.

1996—Subsec. (a). Pub. L. 104–121, § 241(a)(1)(B), inserted at end “In the case of an interpretative rule involving the internal revenue laws of the United States, this chapter applies to interpretative rules published in the Federal Register for codification in the Code of Federal Regulations, but only to the extent that such interpretative rules impose on small entities a collection of information requirement.”

Pub. L. 104–121, § 241(a)(1)(A), which directed the insertion of “, or publishes a notice of proposed rulemaking for an interpretative rule involving the internal revenue laws of the United States” after “proposed rule” was executed by making the insertion where those words appeared in first sentence to reflect the probable intent of Congress.

Amendment by Pub. L. 104–121 effective on expiration of 90 days after Mar. 29, 1996, but inapplicable to interpretative rules for which a notice of proposed rulemaking was published prior to Mar. 29, 1996, see section 245 of Pub. L. 104–121, set out as a note under section 601 of this title.