45 CFR 1626.6 - Verification of citizenship.
(a) A recipient shall require all applicants for legal assistance who claim to be citizens to attest in writing in a standard form provided by the Corporation that they are citizens, unless the only service provided for a citizen is brief advice and consultation by telephone, or by other non-in-person means, which does not include continuous representation.
(b) When a recipient has reason to doubt that an applicant is a citizen, the recipient shall require verification of citizenship. A recipient shall not consider factors such as a person's accent, limited English-speaking ability, appearance, race, or national origin as a reason to doubt that the person is a citizen.
(1) If verification is required, a recipient may accept originals, certified copies, or photocopies that appear to be complete, correct, and authentic of any of the following documents as evidence of citizenship:
(i) United States passport;
(ii) Birth certificate;
(iii) Naturalization certificate;
(iv) United States Citizenship Identification Card (INS Form 1-197 or I-197); or
(v) Baptismal certificate showing place of birth within the United States and date of baptism within two months after birth.
(2) A recipient may also accept any other authoritative document, such as a document issued by DHS, by a court, or by another governmental agency, that provides evidence of citizenship.
(3) If a person is unable to produce any of the above documents, the person may submit a notarized statement signed by a third party, who shall not be an employee of the recipient and who can produce proof of that party's own United States citizenship, that the person seeking legal assistance is a United States citizen.