Code of Federal Regulations Title 22. Foreign Relations § 22.51.52 Exemption from payment of passport fees

(1) An officer or employee of the United States traveling on official business and the members of his or her immediate family. The applicant must submit evidence of the official purpose of the travel and, if applicable, authorization for the members of his or her immediate family to accompany or reside with him or her abroad.

(2) An American seaman who requires a passport in connection with his or her duties aboard a United States flag vessel.

(3) A widow, widower, child, parent, brother or sister of a deceased member of the United States Armed Forces proceeding abroad to visit the grave of such service member or to attend a funeral or memorial service for such member.

(4) Other persons whom the Department determines should be exempt from payment of passport fees for compelling circumstances, pursuant to guidance issued by the Department;  or

(5) Other categories of persons exempted by law.