CFR›Title 45›Subtitle B›Chapter XI›Part 1158›45 CFR Part 1158 Subpart C Citation45 CFR Part 1158 Subpart CContainsSection § 1158.300CorpusDaily eCFRDisplayed edition2026-11-02Last updated2026-11-02 Subpart C—Activities by Other Than Own Employees Sections § 1158.300 § 1158.300 Professional and technical services. Authority20 U.S.C. 959; 28 U.S.C. 2461; 31 U.S.C. 1352.Source55 FR 6737, 6755, Feb. 26, 1990, unless otherwise noted.