Posts Tagged ‘ Hallmark Certification ’

WDMA Extends Term of Hallmark Certification

May 17th, 2013

The Window and Door Manufacturers Association (WDMA) Hallmark Certification Committee approved procedures for extending the term of Hallmark certification from four years up to a total of eight years. The new procedure is available to WDMA Hallmark licensees for actively certified products that have not changed during their initial four-year certification term and where the […]