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
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Technical documents are written materials designed to help people use published data, maps and files. While much of the information is common to experts and specialists, the goal of a technical document is to explain things to the general reader who knows little or nothing about the topic.
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