AC478 Accreditation
Metal Building System Assemblers - Add Accountability and Value!
The IAS accreditation program for Metal Building Assemblers (AC478) complements an existing IAS accreditation program for Manufacturers of Metal Building Systems (AC472) developed by IAS and the Metal Building Manufacturers Association in 2008. These complementary accreditation programs for metal building projects ensure the highest quality commercial buildings.
The MBCEA encourages all metal building contractors and erectors to pursue AC478 to assure project owners that the erector they have chosen follows a comprehensive quality driven metal building assembly program that is assessed annually. Only the AC478 mark proves your commitment to safety, training and quality.
MBCEA encourages metal building systems manufacturers to pursue AC472 accreditation to demonstrate their commitment to designing and manufacturing buildings according to code and specifications.
MBCEA recommends building owners, developers, and architects require AC472 and AC478 accreditation in their specifications and that building officials look for it before issuing permits.
AC478 and AC472 are administered by the International Accreditation Service, a member of the International Code Council Family of Solutions which develops the IBC codes.

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The MBCEA hosts a bimonthly AC478 Roundtable for anyone interested. Please check the event page for more information.