CFR›Title 18›Chapter I›Part 3a›Subject Group Classification ContainsSections 3a.11–3a.13CorpusDaily eCFRDisplayed edition2026-06-26Last updated2026-06-26 Sections 3a.11 § 3a.11 Classification of official information. 3a.12 § 3a.12 Authority to classify official information. 3a.13 § 3a.13 Classification responsibility and procedure. Previous Accountability For Classified Material Accountability For Classified Material Next Classification Markings and Special Notations Classification Markings and Special Notations