Pub. L. 87-793, pt. II, tit. III, sec. 714
basic salary in cases of assignments of postal employees
basic salary in cases of assignments of postal employees Sec. 714. (a) Section 3335(b) of title 39, United States Code, is amended by adding at the end thereof the following sentence: “The Postmaster General may pay, as he deems advisable, in cases of such assignments, a basic salary computed in accordance with the provisions of such section 3559 without regard to the requirement in this subsection of assignment for more than thirty days in a calendar year.”. (b) Each payment, of an increase in basic salary which was made prior to the date of enactment of this section for services performed for periods of thirty days or less in any calendar year in the course of an assignment referred to in section 3335(b) of title 39, United States Code, by a postal field service employee assigned to duties and responsibilities of a higher salary level, and which would have been authorized by such section 3335(b), if such services had been performed in the course of such assignment after the completion by such employee of thirty days of service in any calendar year in such higher salary level, are hereby validated to the same extent as if such services had been performed after the completion of thirty days of service in any calendar year in the course of such assignment. Payments of increases validated by this subsection shall be considered as basic salary for the purposes of the Civil Service Retirement Act (5 U.S.C. 2251–2267).