37 USC 415 - Uniform allowance: officers; initial allowance
(a) Subject to subsection (b), an officer of an armed force is entitled to an initial allowance of not more than $400 as reimbursement for the purchase of required uniforms and equipment
(1) upon first reporting for active duty (other than for training) for a period of more than 90 days;
(2) upon completing at least 14 days of active duty as a member of a reserve component;
(3) upon completing 14 periods, each of which was of at least two hours duration, of inactive-duty training as a member of the Ready Reserve; or
(b) An officer who has received an initial uniform reimbursement or allowance under any other law is not entitled to an initial allowance under subsection (a).
(c) An allowance of $250 for uniforms and equipment may be paid to each commissioned officer of the Public Health Service who is
(1) on active duty or on inactive duty training status; and
(2) required by directive of the Surgeon General to wear a uniform.
An officer is not entitled to more than one allowance under this subsection.