General rule
In the case of any employee of the United States Postal Service who performs services involving the collection and delivery of mail on a rural route and who receives qualified reimbursements for the expenses incurred by such employee for the use of a vehicle in performing such services—
(A)#
the amount allowable as a deduction under this chapter for the use of a vehicle in performing such services shall be equal to the amount of such qualified reimbursements; and
(B)#
such qualified reimbursements shall be treated as paid under a reimbursement or other expense allowance arrangement for purposes of section 62(a)(2)(A) (and section 62(c) shall not apply to such qualified reimbursements).