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The National Association of Home Builders (NAHB) Research Center approves certain products as being eligible to contribute points toward certification of a building under the National Green Building Standard™ for homes. NAHBRC issues a Certificate to the manufacturer from NAHBRC, along with the right to use the NAHB Research Center Green Approved mark on approved products. Such products, when appropriately used, enable builders to earn points toward certification of the building. The NAHB Research Center Green Approved mark is intended to assist builders, designers, and specifiers in identifying products that can contribute points toward building certification. The NAHB Research Center Green Approved mark is also intended to facilitate the verification of the "green" practice incorporated into the building during field inspections by providing the accredited verifier with assurance that the product is eligible for the points claimed by the builder.
This program requires that manufacturers provide appropriate third-party evidence that their products meet the criteria for recognition in buildings certified to the National Green Building Standard™. "Green Approved" products carry a certificate from the NAHB Research Center that identifies the specific section(s) of the Standard where points for the product are available.