The 0161 Postal Clerk MOS is a small, but dearly loved occupational specialty in the Marine Corps. Whether in boot camp or forward deployed, mail call holds a special place in every Marine's heart. Postal Clerks perform all duties necessary to the efficient operation of a Marine Corps Post Office. Postal Clerks perform all duties necessary to the efficient operation of a Marine Corps Post Office. Mail handling duties can include, but are not limited to accepting, sorting, manifesting and dispatching all types of mail, to include official mail. Postal Clerks also issue and cash USPS money orders, sell stamps, apply postage to, and mail out parcels. They perform any other duties in connection with the proper running of a postal operation. Only Postal Marines receiving formal training as listed in the prerequisites and assigned to a military postal facility, may be given this MOS. Postal Clerks will not be assigned to unit mailrooms to conduct mail clerk/orderly functions.