CFR›Title 18›Chapter I›Part 3a›Subject Group Declassification and Downgrading ContainsSections 3a.21–3a.23CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Sections 3a.21 § 3a.21 Authority to downgrade and declassify. 3a.22 § 3a.22 Declassification and downgrading. 3a.23 § 3a.23 Review of classified material for declassification purposes. Previous Data Index System Data Index System Next General General