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.
The required documentation column on the SF-15
refers you to page 2 of the form regarding the types of documents that are
acceptable proof of your claim for preference.