Unless entitled to basic pay under
section 204 of this title, an enlisted member of a reserve component may receive, at the discretion of the Secretary concerned, rations in kind, or a part thereof, when the member’s instruction or duty periods, as described in
section 206(a) of this title, total at least 8 hours in a calendar day. The Secretary concerned may provide an enlisted member who could be provided rations in kind under the preceding sentence with a commutation when rations in kind are not available.