Recipient name (full name or organization name)
Street address (include apartment/suite/unit number)
City, state/province, ZIP/postal code
Country (if sending internationally)
Return address (your name or organization)
Return address street address (include apartment/suite/unit number)
Return address city, state/province, ZIP/postal code
Country (if returning from another country)
Place the recipient address in the center of the envelope, top line first
Place the return address in the top-left corner of the envelope (or back flap area if required by your mail service)
Use the standard format for your country (for example, US: Name, Street, City, State ZIP; UK: Name, Street, Locality, Postcode; Canada: Name, Street, City, Province Postal Code)