8 CFR 319.3: Surviving spouses of United States citizens who died during a period of honorable service in an active duty status in the Armed Forces of the United States.

(a) Eligibility. To be eligible for naturalization under section 319(d) of the Act, the surviving spouse, child, or parent of a United States citizen must:

(1) Establish that his or her citizen spouse, child, or parent died during a period of honorable service in an active duty status in the Armed Forces of the United States and, in the case of a surviving spouse, establish that he or she was living in marital union with the citizen spouse, in accordance with 8 CFR 319.1(b), at the time of the citizen spouse's death;

(2) At the time of examination on the application for naturalization, reside in the United States pursuant to a lawful admission for permanent residence;

(3) Be a person of good moral character, attached to the principles of the Constitution of the United States, and favorably disposed toward the good order and happiness of the United States; and

(4) Comply with all other requirements for naturalization as provided in 8 CFR 316, except for those contained in 8 CFR 316.2(a)(3) through (6).

(b) Remarriage of the surviving spouse. The surviving spouse of a United States citizen described under paragraph (a)(1) of this section remains eligible for naturalization under section 319(d) of the Act, even if the surviving spouse remarries.