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The following standard abbreviations are recognized by the U.S. Postal Service optical character readers and sorters for fast handling of your mail. Use these abbreviations using all capital letters AND no punctuation to avoid mail processing delays. U.S. Postal Service Publication 28, Postal Addressing Standards provides additional authorized abbreviations. The abbreviations below may also be found in the Abbreviations PDF.

States and Possessions

list of state abbreviations

Directional Abbreviations

Secondary Address Unit Indicators

Street Designators

list of street abbreviations



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