37 USC 420 – Allowances while participating in international sports
(a) Section 717 of title 10 does not authorize the payment of allowances at higher rates than those provided for participation in military activities not covered by that section.
(b) Notwithstanding any other law, a member of a uniformed service is not entitled to travel and transportation allowances under section 452 of this title for any period during which his expenses for travel or transportation are being paid by the agency sponsoring his participation in a competition covered by section 717 of title 10.
(c) Notwithstanding any other law, a member of a uniformed service who has no dependents is not entitled to the basic allowances for subsistence and housing authorized by sections 402 and 403 of this title for a period during which he is subsisted and quartered by the agency sponsoring his participation in a competition covered by section 717 of title 10.