IAS (Internal Accreditation Service) AC472 is the high quality standard certification program that is specifically written for the metal building systems industry. It is in cooperation with the MBMA, and
must be achieved in order to continue MBMA membership.
IAS AC472 Consists of Three Parts
Part A Sructural - modeled after AC172, primarily covers welding and traceability for structural fabrication.
B Cold Formed - covers the fabrication of cold-formed products that do not require welding.
Part C Design - addresses the design of metal building systems.