CFR›Title 10›Chapter II›Part 501›Subpart L ContainsSections 501.180–501.183CorpusDaily eCFRDisplayed edition2026-07-28Last updated2026-07-28 Subpart L—Investigations, Violations, Sanctions and Judicial Actions Sections 501.180 § 501.180 Investigations. 501.181 § 501.181 Sanctions. 501.182 § 501.182 Injunctions. 501.183 § 501.183 Citizen suits. Previous K Subpart K—Enforcement Next M Subpart M—Use of Natural Gas or Petroleum for Emergency and Unanticipated Equipment Outage Purposes