37 U.S.C. § 1002 - U.S. Code - Unannotated Title 37. Pay and Allowances of the Uniformed Services § 1002. Additional training or duty without pay: Reserves and members of National Guard

(b)(1) A member who performs training or other duty without pay under subsection (a) may, in the discretion of the Secretary concerned, be authorized the travel and transportation allowances prescribed by section 452 of this title for travel performed to and from that training or duty, and, during the performance of that training or duty, be furnished with subsistence and quarters in kind or commutation thereof at a rate to be fixed by the Secretary concerned.

(2) If a military technician (dual status), as described in section 10216 of title 10, is performing active duty without pay while on leave from technician employment, as authorized by section 6323(d) of title 5, the Secretary concerned may authorize the payment of a per diem allowance to the military technician in lieu of commutation for subsistence and quarters under paragraph (1).