CFR›Title 14›Chapter V›Part 1203›Subpart E ContainsSections 1203.500–1203.501CorpusDaily eCFRDisplayed edition2026-05-12Last updated2026-05-12 Subpart E—Derivative Classification Sections 1203.500 § 1203.500 Use of derivative classification. 1203.501 § 1203.501 Applying derivative classification markings. Previous D Subpart D—Guides for Original Classification Next F Subpart F—Declassification and Downgrading