Mail Piece Design
&
Information.
Tips
Postal Regulations
Useful Postal Links
Templates
FAQS
The USPS Quick Service Guide is an invaluable tool in keeping up with postal regulations. On the down side, it’s pretty hefty. Below are specific pages that you might find useful as an overall description of mailing services and specifications.
Mailing Links
Service Endorsements
Physical Standards for LETTERS and CARDS
Physical Standards for FLATS
Designing Letters and Cards
Courtesy Reply Mail
Business Reply Mail
Glossary
Tabbing Requirements
Tabbing Placement
Postal Permits