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.
Learn about the various green building rating systems that use ENERGY STAR tools such as Portfolio Manager, Target Finder, and the Sustainable Buildings Checklist.
