Industry Links
Stay up to date on important postal and industry information.
- Business Customer Gateway
- Notice 123 Price
- Lorton Data Postal Rate Guide
- Quick Postage Estimate
- Look up a ZIP Code™
- Postal Pro
- Postal Explorer
- How to Read a Return Mail sticker
- Industry Service Alerts
- Locate a Mailpiece Design Analyst
- Locate a Postal Customer Council near you
- Mailing & Shipping Solutions Center
- USPS® National Customer Support Center 1.800.238.3150
- Business Mail 101
- Certified Mailing Professionals and Mail Certification Programs
Mailing Education
USPS Mailer Portals
USPS News & Alerts
USPS Publications & Important Resources
- Postal Pro
- Postal Explorer
- DMM
- Quick Service Guide
- USPS Destination Entry Discounts (DBMC/DADC/DSCF/DDU) 705f Quick Service Guide
- Quick Guide to Electronic Verification System (eVS®)
- Guide to eInduction
- Mailer ID (MID) Info
- Mailer ID (MID) Application
- How to Look Up a Mail Owner’s CRID/MID
- Service Type Identifier (STID) Table
- Service Type Codes for IMpb
- STID Table for Ballot Mail
- Barcode Decoder /Encoder
- Direct Business Mail entry locator
- How to Submit Mail.dat Jobs to PostalOne!
- Folded Self Mailer Reference Material
- Move Update Standard
- Move Update Methods Requirements Fact Sheet
- Ancillary Service Endorsements
- Full-Service Fact Sheets
- Mailpiece Design Analyst
- Business Service Network Locator