Pub. L. 85-426, tit. IV, sec. 402

Sec. 402 (a) The annual rate of basic salary of any officer or employee whose basic salary by reason of the provisions of section 504 of the Postal Field Service Compensation Act of 1955 is at a rate between two scheduled rates, or above the highest scheduled rate, in the Postal Field Service Schedule, the Rural Carrier Schedule, or the Fourth-Class Office Schedule, whichever may be applicable, is hereby increased by an amount equal to the amount of the increase made by this title in the next lower rate of the appropriate level in such schedule. (b) As used in this section, the term “basic salary” has the same meaning as when used in the Postal Field Service Compensation Act of 1955.