This site will allow you to find the nearest location to apply for a passport. It is provided by the Department of State's Bureau of Consular Affairs, Office of Passport Services/Customer Service,
from the U.S. Department of State: Bureau of Consular Affairs. Both parents are required to sign off on passport for minor, unless one parent has sole custody.
Submit to US Dept of State if the child's family situation makes it exceptionally difficult or impossible for one or both child’s parents/legal guardians to provide the notarized, written statement of consent.