As the indoor air quality (IAQ) industry continues to evolve, businesses that are responsible for managing IAQ issues are adapting to meet the demands of the industry. The Indoor Environmental Standards Organization (IESO) was established in 2002 to assist these businesses. With headquarters in Rockville, MD, IESO is a non-profit organization that provides a national forum for the development and publication of voluntary consensus standards for the assessment of indoor environments. Its mission is to be the foremost developer and provider of voluntary consensus indoor environmental quality standards, related technical information, and services having recognized quality and applicability that promote public health and safety, and the overall quality of life.