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Window & Door Manufacturers Association

Organization Window & Door Manufacturers Association
Letter Code WDMA
Website http://www.wdma.com
Begin Event End Event PRG Scope
7/21/2015
(Granted)
12/15/2016
(Voluntarily Withdrawn)
PRO WDMA Hallmark Certification Program
81.040 Glass
7/21/2015
(Granted)
12/15/2016
(Voluntarily Withdrawn)
PRO 81.040.20 Glass in building
91.060 Elements of buildings
7/21/2015
(Granted)
12/15/2016
(Voluntarily Withdrawn)
PRO 91.060.50 Doors and windows

How is accreditation like an onion?