MAS Certified Green

MAS Certified Green is a product certification program administered by Materials Analytical Services, LLC (MAS), an independent testing laboratory based in Suwanee, Georgia. The certification identifies building and interior products that meet stringent low-VOC (volatile organic compound) emissions standards, helping manufacturers demonstrate that their products are safe for indoor environments.

The program is designed for manufacturers in the construction and building materials industries who want their products recognized within the U.S. green building market. Products that pass MAS testing criteria earn the right to display the MAS Certified Green trademark, which signals to architects, specifiers, and purchasers that the product has been independently verified for low chemical emissions.

For those specifying or purchasing building products, MAS Certified Green serves as a practical decision-making tool. Products carrying the certification can contribute to credits in major sustainability frameworks, including USGBC LEED, the California Department of Public Health (CDPH) standards, and the Collaborative for High Performance Schools (CHPS) program. This makes it particularly relevant for projects in the United States pursuing green building ratings or compliance with California indoor air quality requirements.