10 U.S.C. § 655 : US Code - Section 655: Designation of persons having interest in status of a missing member

Search 10 U.S.C. § 655 : US Code - Section 655: Designation of persons having interest in status of a missing member

(a) The Secretary concerned shall, upon the enlistment or
appointment of a person in the armed forces, require that the
person specify in writing the person or persons, if any, other than
that person's primary next of kin or immediate family, to whom
information on the whereabouts and status of the member shall be
provided if such whereabouts and status are investigated under
chapter 76 of this title. The Secretary shall periodically, and
whenever the member is deployed as part of a contingency operation
or in other circumstances specified by the Secretary, require that
such designation be reconfirmed, or modified, by the member.
(b) The Secretary concerned shall, upon the request of a member,
permit the member to revise the person or persons specified by the
member under subsection (a) at any time. Any such revision shall be
in writing.