§ 51.40 - Burden of proof.

§ 51.41 - Documentary evidence.

§ 51.42 - Persons born in the United States applying for a passport for the first time.

§ 51.43 - Persons born outside the United States applying for a passport for the first time.

§ 51.44 - Proof of resumption or retention of U.S. citizenship.

§ 51.45 - Department discretion to require evidence of U.S. citizenship or non-citizen nationality.

§ 51.46 - Return or retention of evidence of U.S. citizenship or non-citizen nationality.

Citizenship by Act of Congress or Treaty

Married Women

§ 51.47 - Marriage prior to September 22, 1922, to an alien who acquired U.S. citizenship by naturalization prior to September 22, 1922.

§ 51.48 - Marriage between September 22, 1922, and March 3, 1931, to an alien ineligible to citizenship.

§ 51.49 - Marriage on or after September 22, 1922, to an alien eligible to naturalization.