An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
The attached documents contain Geographic Locator Codes (GLCs) for the United States, including the District of Columbia, and the U.S. territories.