CFR›Title 22›Chapter III›Part 311›Subpart C ContainsSection 311.300CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart C—Activities by Other Than Own Employees Sections 311.300 § 311.300 Professional and technical services. Previous B Subpart B—Activities by Own Employees Next D Subpart D—Penalties and Enforcement