​Proper Addressing of Mail

• It is best to capitalize everything in the address and center on the envelope
• Eliminate all punctuation​
  
• Use the USPS list of common address and state abbreviations (pp. 29-30)
• Always use a return address including IC, building address, room # and mail stop code
• Always place the street address or post office box on the line above the city and state
• Always place the ZIP+4 Code on the last line of the address
• Always leave the bottom ½ inch (both front and back) blank and unobstructed to allow for USPS barcode