22 CFR § 51.21 - Execution of passport application.
(a) Application by personal appearance. Except as provided in § 51.28, to assist in establishing identity, a minor, a person who has never been issued a passport in his or her own name, a person who has not been issued a passport for the full validity period of 10 years in his or her own name within 15 years of the date of a new application, or a person who is otherwise not eligible to apply for a passport by mail under paragraphs (b) and (c) of this section, must apply for a passport by appearing in person before a passport agent or passport acceptance agent (see § 51.22). The applicant must verify the application by oath or affirmation before the passport agent or passport acceptance agent, sign the completed application, provide photographs as prescribed by the Department, provide any other information or documents requested and pay the applicable fees prescribed in the Schedule of Fees for Consular Services (see 22 CFR 22.1).
(b) Application by mail or on-line—persons in the United States.
(1) A person in the United States who previously has been issued a passport valid for 10 years in his or her own name may apply for a new passport by filling out, signing and mailing an application on the form prescribed by the Department if:
(i) The most recently issued previous passport was issued when the applicant was 16 years of age or older;
(ii) The application is made not more than 15 years following the issue date of the previous passport, except as provided in paragraph (e) of this section; and
(iii) The most recently issued previous passport of the same type is submitted with the new application.
(2) A person in the United States who previously has been issued a passport valid for 10 years in their own name may apply for a new passport by filling out, signing, and submitting an on-line application via the Department's official website if:
(i) The applicant's most recently issued passport was issued when the applicant was 16 years of age or older, and has one year or less of validity remaining;
(ii) The application is made not more than 15 years following the issue date of the most recently issued passport of the same type;
(iii) The most recently-issued passport of the same type is available for verification via the on-line process.
(3) The applicant must also provide photographs as prescribed by the Department and pay the applicable fees prescribed in the Schedule of Fees for Consular Services (22 CFR 22.1).
(c) Application by mail—persons abroad.
(1) A person in a foreign country where the Department has authorized a post to receive passport applications by mail who previously has been issued a passport valid for 10 years in his or her own name may apply for a new passport in that country by filling out, signing and mailing an application on the form prescribed by the Department if:
(i) The most recently issued previous passport was issued when the applicant was 16 years of age or older;
(ii) The application is made not more than 15 years following the issue date of the previous passport, except as provided in paragraph (e) of this section; and
(iii) The most recently issued previous passport of the same type is submitted with the new application.
(2) The applicant must also provide photographs as prescribed by the Department and pay the applicable fees prescribed in the Schedule of Fees for Consular Services (22 CFR 22.1).
(d) Nothing in this part shall prohibit or limit the Department from authorizing an overseas post to accept a passport application or applications from persons outside the country or outside the person's country of residence in circumstances which prevent provision of these services to the person where they are located or in other unusual circumstances as determined by the Department.
(e) A senior passport authorizing officer may authorize acceptance of an application by mail where the application is made more than 15 years following the issue date of the previous passport as appropriate and in accordance with guidance issued by the Department.