Standardized Addresses

Addresses which follow standards set by the Postal Service are more likely to not cause false NCOA matches and to CASS certify to qualify for less-expensive automation postage rates. But, perhaps just as important, standardized addresses result in better service from the Post Office—the mail moves faster and is more likely to get to the correct address.

Click on the Postal Addressing Standards link on the Postal Explorer home page ( for lots of information about addressing your mail.