Domestic Mail
- Domestic Mail Manual (DMM)HTML|PDF
- DMM Subject IndexHTML|PDF
- DMM Summary of ChangesHTML|PDF
- Quick Service GuidesHTML|PDF
- Customer Support Rulings (CSR)HTML
- Postal Addressing Standards (PUB 28)HTML|PDF
- Nonprofit USPS Marketing Mail Eligibility (PUB 417)HTML|PDF
- A Customer's Guide to Mailing (DMM 100)HTML|PDF
- Hazardous, Restricted, and Perishable Mail (PUB 52)HTML|PDF
- HAZMAT Search Tool
- PACT Act Information and Forms (Including ENDS/Vaping Requirements)
International Mail
- International Mail Manual (IMM)HTML|PDF
- IMM Subject IndexHTML|PDF
- Individual Country ListingsHTML|PDF
- Country Price Groups and Weight LimitsHTML|PDF
Prices
- Price List (Notice 123)HTML|PDF
- January 2022 Price Change Effective 01/09/22Documents
- August 2021 Price Change 08/29/21 - 10/02/21 & 12/26/21 - 01/08/22 Documents
- Time-Limited Price Change 10/03/21 - 12/25/21Documents