Pub. L. 84-68, tit. VI, sec. 610
allowances for postmasters in fourth-class post offices
allowances for postmasters in fourth-class post offices Sec. 610, Postmasters of fourth-class post offices shall be paid as allowances for rent, fuel, light, and equipment an amount equal to 15 per centum of the basic compensation earned in each pay period, at the same time and in the same manner as their regular compensation.