Inspection Practices of Metal Building Assemblers

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International Accreditation Service (IAS) offers accreditation to qualified inspection programs operated by assemblers of metal building systems. IAS Accreditation Criteria for Inspection Practices of Metal Building Assemblers provides the minimum requirements for the inspection practices that are required to achieve IAS accreditation. As a voluntary accreditation program, contractors and building erectors will benefit by establishing inspection processes and assembly procedures to help ensure that their work complies with construction documents and code requirements. A key part of the accreditation involves documenting and implementing a management system specific to each company’s assembly processes that includes internal safety and training programs and periodic jobsite inspections to verify compliance with AC478. Inspections are conducted by an IAS-accredited inspection agency. AC478 was developed after a series of meetings between IAS and the Metal Building Contractors & Erectors Association (MBCEA). The intent of the inspection program is to establish a benchmark for companies qualified to assemble and erect metal buildings using an internal inspection process with periodic oversight to recognize and accredit competent metal building assemblers. Currently, IAS is accepting applications for accreditation and will work with applicants as the criteria evolve or further changes are proposed. The approved AC478 criteria is currently available to all interested parties.

If you have any questions about this program, contact Ms. Sandi McCracken, Program Manager, 3060 Saturn Street, Suite 100, Brea, California 92821-1732. Phone: 562-364-8201 or toll free (in the U.S.) 866-427-4422, extension 3309; Fax: 562-699-8031, E-mail


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