Travel and related expenses

The Secretary may pay the travel and related expenses of members of the Service and their families, including costs or expenses incurred for— obtaining necessary medical care for an illness, injury, or medical condition while abroad in a locality where there is no suitable person or facility to provide such care (without regard to those laws and regulations limiting or restricting the furnishing or payment of transportation and traveling expenses), as well as expenses for— rest and recuperation travel of members of the Service who are United States citizens, and members of their families, while serving at locations abroad specifically designated by the Secretary for purposes of this paragraph, to— trips by a member of the Service, and members of his or her family, for purposes of family visitation in situations where the family of the member is prevented by official order from accompanying the member to, or has been ordered from, the assigned post of the member because of imminent danger due to the prevalence of disturbed conditions, except that— packing and unpacking, transporting to and from a place of storage, and storing the furniture and household and personal effects of a member of the Service (and of his or her family)— transporting, for or on behalf of a member of the Service, a privately owned motor vehicle in any case in which the Secretary determines that water, rail, or air transportation of the motor vehicle is necessary or expedient for all or any part of the distance between points of origin and destination, but transportation may be provided under this paragraph for only one motor vehicle of a member during any 48-month period while the member is continuously serving abroad, except that another motor vehicle may be so transported as a replacement for such motor vehicle if such replacement— in the case of one or more children below age 21 of a member of the Service assigned abroad, 1 round-trip per year—