AAMA (American Architectural Manufacturer’s Association)
AAMA is a voluntary trade association that provides performance standards, product certification and educational programs for the window and door industry. For more information, visit their website.
ASTM (American Society for Testing and Materials)
ASTM is an international, voluntary standards development organization, and is a globally trusted source for technical standards for materials, products, systems and services. Many AAMA Standards are directly related to or employ ASTM Standards for testing and performance of windows and doors. For more information, visit their website.
NFRC (National Fenestration Ratings Council)
NFRC is a non-profit organization that administers a uniform, independent rating and labeling system for the energy performance of windows, doors, skylights and attachment products. NFRC provides fair, accurate and reliable energy performance ratings that enable architects, builders, code officials and consumers to compare the thermal performance of different fenestration products, and provides a fair and level playing field for fenestration manufacturers in the area of thermal performance. For more information, visit their website.
NVLAP (National Voluntary Laboratory Accreditation Program)
Administered by the National Institute of Standards and Technology, the NVLAP provides unbiased third-party evaluation and recognition of laboratory performance and provides technical guidance to assist laboratories in upgrading their performance. For more information, visit their website.