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					 The Vinyl Siding Institute, Inc. (VSI) is the trade association for manufacturers of vinyl and other polymeric siding and suppliers to the industry.  |                 
				                
                  
					                
					 The NFRC serves the public by driving widespread usage of fair, accurate, and credible energy performance ratings, serves members by giving them a voice in the ratings development process, and serves the industry by creating an environment of competition that drives energy performance.  |             
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					 Fenestration Canada is a national trade association and the voice of the Canadian window and door industry. Their membership is comprised of manufacturers & distributors, suppliers and regulators.  |                 
				                
					                
					 Founded in 1982, The Vinyl Institute is a U.S. trade organization representing the leading manufacturers of vinyl, vinyl chloride monomer, and vinyl additives and modifiers.  |             
			
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