Pub. L. 86-682, tit. 39, pt. III, ch. 43, sec. 3302
Substitute positions
§ 3302. Substitute positions (a) Except as otherwise provided in this section the Postmaster General shall prescribe the conditions under which substitutes may be appointed. (b) The Postmaster General may appoint not more than one career substitute to five regular employees, or fraction thereof, in any of the following categories. (1) postal transportation clerks; (2) post office clerks; (3) city letter carriers; (4) village letter carriers; (5) mail handlers; (6) watchmen; (7) messengers; (8) employees of the Motor Vehicle Service. (c) In post offices having fewer than five regular employees, the Postmaster General may appoint one career substitute clerk, carrier, and employee in the Motor Vehicle Service. (d) The Postmaster General may not appoint additional career substitutes until the ratios prescribed by this section are established. (e) The Postmaster General may not furlough or dismiss a career substitute in the categories covered by this section to meet requirements of this section.