CFR›Title 22›Chapter I›Part 138›Subpart C ContainsSection 138.300CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart C—Activities by Other Than Own Employees Sections 138.300 § 138.300 Professional and technical services. Previous B Subpart B—Activities by Own Employees Next D Subpart D—Penalties and Enforcement