Chapter 10-1-7: Postal Formats
Correct Address Formats
Letters - Canada
Addresses for letterhead and recipients on letters should follow a specific format (envelope formats appear further below):
Letters - United States
Envelopes - Canada & United States
The rules for addresses on envelopes are the same as above for addresses on letters, with the following characteristics:
The text is written in uppercase (capital) letters
Don't use punctuation unless it is part of a proper name, e.g., ST. JOHN'S
Format the return address the same way as the destination address and place it in the top-left corner of the envelope or package (or on the back of the item at the top).
While symbols and abbreviations are discouraged in letters, symbols and abbreviations are encouraged on envelopes;
Lookup Tool - Address Symbols and Abbreviations
When composing letterhead or writing an address on an envelope, the postal service uses specific provincial symbols and state abbreviations. Letters have additional abbreviations (short forms). The following lookup tool provides a summary of these symbols and abbreviations:
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