(a) The Secretary may restrict the use of a passport for travel to or use in a country or area which the Secretary has determined is:
- (1) A country with which the United States is at war; or
- (2) A country or area where armed hostilities are in progress; or
- (3) A country or area in which there is imminent danger to the public health or physical safety of United States travelers.
- (b) Any determination made and restriction imposed under paragraph (a) of this section, or any extension or revocation of the restriction, shall be published in the Federal Register.
- (c) A passport may not be designated as valid only for travel to Israel.