United States Postal Service
Access Locations: Stephen A. Schwarzman Building, Outside the Library
Subjects: Reference; Organizations and Museums
Notes: The Web site of the Unites States Postal Service offers various services, publications and products including a ZIP code finder, post office locator, forms, tracking and confirmation, and a rate calculator.
Dates of Coverage: Current
Update Frequency: Periodically
Print Equivalent: For the print equivalent of this title, see National five digit zip code and post office directory (Washington, U.S. Postal Service, 1982-) or National zip code and post office directory (Washington).
Output Type: Print