They then transport each type of mail to its sorting area. Mail handlers may load mail into automated letter sorting machines. Other duties include canceling stamps and re-wrapping damaged packages. Another group of clerks sorts letters once the stamps have been canceled. Odd-sized letters and magazines are sorted by hand.
Some clerks use letter sorting machines.
Clerks must push the keys that correspond to the zip code on the letter. Other clerks operate optical character readers and bar code sorters. Postal Clerks is in the Business, Management, and Finance Career Cluster.