Pub. L. 86-682, tit. 39, pt. III, ch. 4, sec. 3553
Creditable service for advancement
§ 3553. Creditable service for advancement Each employee in the postal field service is eligible to earn step-increases in accordance with this chapter. Except for temporary rural carriers serving in the absence of regular rural carriers on leave without pay or on military leave, credit may not be allowed for time on the rolls under a temporary appointment for one year or less unless the time on the rolls is continuous to the date of appointment to a position of unlimited duration.