The following guidelines are for addressing a mail piece:

• Use simple sans serif type with uniform stroke thickness.
• Type or machine-print in dark ink on a light background with a uniform left margin.
• Left-justify every line in the address block.
• Use two-letter state abbreviations.
• Use one space between city and state, two spaces between state and ZIP+4 code.
• Use appropriate ZIP+4 code (if unknown, use 5-digit ZIP Code).
• A minimum of 8-point type, or if Intelligent Mail barcode with a delivery point routing code, a minimum of 6-point type is acceptable if printed in all capital letters. 
• Include a return address 

The delivery address is the most important information on your mail piece. Use the following format for your delivery addresses:

Name or attention line:                 JANE L MILLER
Company:                                        MILLER ASSOCIATES
Delivery address:                           1960 W CHELSEA AVE STE 2006R
City, state, ZIP Code:                     ALLENTOWN PA 18104