Companies that are AISC Certified have been through a rigorous initial evaluation and are subject to annual reviews. An AISC independent auditing company, Quality Management Company, LLC, confirms that companies have the personnel, knowledge, organization, equipment, experience, capability, procedures, and commitment to produce the required quality of work.

Fabricators supplying steel to the City of Los Angeles are required to be approved by the LA Department of Building and Safety. Because of earthquakes, fabricators must maintain a very high standard of care in quality control to obtain an LA fabricators license. The L.A. standard is so well known that many large western cities provide an automatic exemption from their own local certification programs with proof of LA Certification.