Information You Need From a Source You Can Trust

		Energy Performance Ratings Search for energy performance ratings for the products you want to buy.
		Learn more about NFRC Find out more about how we can help you make an informed purchase decision. Listing of Manufacturers Participating in the NFRC Certification Program Listing of Active Members of the NFRC - stakeholders supporting the NFRC program
		ENERGY STAR Program and NFRC Access information on this program and other voluntary code information
		Answers From the Experts Get a quick response to your questions from NFRC staff.
		Other Helpful Web Sites Links to other Web sites that can help in your search for the right window.

A Word about ENERGY STAR

The Energy Star Program is for residential applications, three stories or fewer. ENERGY STAR for Windows, Doors, and Skylights is a program only for residential applications, meaning non-commercial buildings or residential structures under three stories. Commercial windows, doors, and skylights require a separate program because of the different structural, durability, and wind load performance requirements. Look for information on NFRC's Component Modeling Approach (CMA) for Commercial applications coming soon.