CFR›Title 8›Chapter I›Part 331 ContainsSections 331.1–331.4CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 331—ALIEN ENEMIES; NATURALIZATION UNDER SPECIFIED CONDITIONS AND PROCEDURES Sections 331.1 § 331.1 Definitions. 331.2 § 331.2 Eligibility. 331.3 § 331.3 Investigation. 331.4 § 331.4 Procedures. Authority8 U.S.C. 1103, 1443.Source56 FR 50494, Oct. 7, 1991, unless otherwise noted. Previous 330 Part 330—Special Classes of Persons Who May Be Naturalized: Seamen Next 332 Part 332—Naturalization Administration