Child's certified U.S. or foreign birth certificate (with translation, if necessary) listing only applying parent; or
Consular Report of Birth Abroad (Form FS-240) or Certification of Birth Abroad (Form DS-1350) listing only applying parent; or
Court order granting sole custody to the applying parent (unless child's travel is restricted by that order); or
Adoption decree (if applying parents is sole adopting parent); or
Court order specifically permitting applying parent's or guardian's travel with the child; or
Judicial declaration of incompetence of non-applying parent; or
Death certificate of non-applying parent.
If none of the above documentation is available, the applying parent/guardian should submit a Form DS-3053: Statement of Consent: Issuance of a Passport to a Minor Under Age 16
NOTE:
A third-party in loco parentis applying on behalf of a minor under the age of 14 must submit a notarized written statement or affidavit from both parents or guardians authorizing a third-party to apply for a passport. When the statement or affidavit is from only one parent/guardian, the third-party must present evidence of sole custody of the authorizing parent/guardian.