Which organization produces more than 95% of the US market for the door and access systems industry?

• A. Door & Access Systems Manufacturer's Association (DASMA)
• B. International Door Association (IDA)
• C. Accreditation and Certification Institute (ACI)
• D. National Fire Protection Association (NFPA)

Answer: (A)

The main idea here is who actually dominates the production side of the door and access systems market in the United States. The Door & Access Systems Manufacturer's Association is the trade group that represents the manufacturers who design and build doors, operators, and access control hardware in the U.S. Because its membership consists of the vast majority of US door and access systems producers, it is widely recognized as accounting for more than 95% of the market. That makes it the best answer.

The other organizations serve different roles: the International Door Association focuses on dealers and installers rather than manufacturers, the National Fire Protection Association provides life-safety codes and standards, and the Accreditation and Certification Institute isn’t the primary body for market production data in this industry.