PIMA
"The Polyisocyanurate Insulation Manufacturers Association (PIMA) is the national trade association that represents polyiso insulation manufacturers and suppliers to the polyiso industry. PIMA advances the use of polyiso insulation and is one of the nation's foremost industry advocates for energy-efficient practices and policies and had been recognized by both the Environmental Protection Agency (EPA) and the Sustainable Building Industries Council for advocacy and products that both contribute to this country's efforts to promote energy efficiency and combat global warming."
www.polyiso.org