creditable service for advancement

creditable service for advancement Sec. 402. Each employee in the postal field service is eligible to earn step-increases in accordance with this Act. Except for temporary rural carriers serving in the absence of regular rural carriers on leave without pay or on military leave, credit shall not be allowed for time on the rolls under a temporary appointment for one year or less unless such time on the rolls is continuous to the date of appoi utment to a position of unlimited duration.