Postal Address Directory

• Address Information Systems (AIS) Products
  
• Address Management Products
  Products from the National Customer Support Center, including ALMS, CDS, DMM Module L, TIGER, and Zone Charts
• Address Management Publications
  
• Address Management Services
  Services from the National Customer Support Center, including Address Quality, Move Update, Certifications Programs, and Other NCSC Services
• Addressing Standards for Puerto Rico and the Virgin Islands
  
• Mail Preparation Total Quality Management
  A systematic approach for managing the quality of the mail preparation process
• ZIP Code Look-Up and Address Information
  The ZIP Code Look-Up and City/State/ZIP Code Association are free services provided by the USPS to assist the public with their addressing needs.

• Address Management Contact Information
• Address Management System (AMS) Office Locator
• RIBBS - Rapid Information Bulletin Board System Web Site