Interim procedural guide by American Architectural Manufacturers Association (AAMA) provides documented, optional process to extend current, unexpired AAMA product certification to any edition of AAMA/WDMA(/CSA) 101/I.S.2(/A440), North American Fenestration Standard/Specification for windows, doors, and skylights (NAFS), for 2 years for products that have had no changes. Procedural guide, AAMA 106-13, Interim Procedural Guide for Extension of NAFS Certification, goes into effect May 1.
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