CFR›Title 19›Chapter I›Part 181›Subpart L ContainsSections 181.131–181.132CorpusDaily eCFRDisplayed edition2026-05-13Last updated2026-05-13 Subpart L—Rules of Origin Sections 181.131 § 181.131 Rules of origin. 181.132 § 181.132 Disassembly. Previous K Subpart K—Confidentiality of Business Information