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An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

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.

Subject matter expert (SME)

A subject matter expert is an individual with specialized expertise in a specific area or field.

Last Updated: Feb 23, 2024