37 U.S.C. § 428 : US Code - Section 428: Allowance for recruiting expenses

Search 37 U.S.C. § 428 : US Code - Section 428: Allowance for recruiting expenses

In addition to other pay or allowances authorized by law, and
under uniform regulations prescribed by the Secretaries concerned,
a member who is assigned to recruiting duties for his armed force
may be reimbursed for actual and necessary expenses incurred in
connection with those duties.