Amazonin buy distribution clerk machine us postal service letter sorting machine operator us postal service book online at best prices in india on amazonin read distribution clerk machine us postal service letter sorting machine operator us postal service book reviews author details and more at amazonin free delivery on qualified orders. Distribution clerk machine letter sorting machine operator us postal service arco civil service test tutor 9780668056489 communication books amazoncom. Postal service workers postal service clerks and mail sorters processors and processing machine operators work indoors typically in a post office mail carriers mostly work outdoors delivering mail. A usps distribution clerk is an employee of the united states postal service responsible for sorting incoming and outgoing mail other terms distribution clerks are also referred to as mail sorters mail processors mail handlers processing operators or processing clerks. Postal service mail sorters processors and processing machine operators prepare incoming and outgoing mail for distribution examine sort and route mail load operate and occasionally adjust and repair mail processing sorting and canceling machinery