14 C.F.R. § 47.3 Registration required.
Title 14 - Aeronautics and Space
(a) An aircraft may be registered under 49 U.S.C. 44103 only when the aircraft is— (1) Not registered under the laws of a foreign country and is owned by— (i) A citizen of the United States; (ii) An individual citizen of a foreign country lawfully admitted for permanent residence in the United States; or (iii) A corporation not a citizen of the United States when the corporation is organized and doing business under the laws of the United States or a State, and the aircraft is based and primarily used in the United States; or (2) An aircraft of— (i) The United States Government; or (ii) A State, the District of Columbia, a territory or possession of the United States, or a political subdivision of a State, territory, or possession. (b) No person may operate an aircraft that is eligible for registration under 49 U.S.C. 44101–44104, unless the aircraft— (1) Has been registered by its owner; (2) Is carrying aboard the temporary authorization required by §47.31(b); or (3) Is an aircraft of the Armed Forces. (c) Governmental units are those named in paragraph (a) of this section and Puerto Rico. [Doc. No. 7190, 31 FR 4495, Mar. 17, 1966, as amended by Amdt. 47–20, 44 FR 61939, Oct. 29, 1979; Amdt. 47–27, 70 FR 244, Jan. 3, 2005]
Title 14: Aeronautics and Space
PART 47—AIRCRAFT REGISTRATION
Subpart A—General
§ 47.3 Registration required.