CFR›Title 29›Subtitle B›Chapter XL›Part 4000›29 CFR Part 4000 Subpart D Citation29 CFR Part 4000 Subpart DContainsSections § 4000.41–§ 4000.43CorpusDaily eCFRDisplayed edition2026-11-09Last updated2026-11-09 Subpart D—Computation of Time Sections § 4000.41 § 4000.41 What are these computation-of-time rules about? § 4000.42 § 4000.42 What definitions do I need to know for these rules? § 4000.43 § 4000.43 How do I compute a time period? Authority29 U.S.C. 1083(k), 1302(b)(3).Source68 FR 61347, Oct. 28, 2003, unless otherwise noted. Previous C Subpart C—Determining Filing and Issuance Dates Next E Subpart E—Electronic Means of Record Retention