The National Accreditation & Management Institute (NAMI) provides certification, inspection and quality assurance services in accordance with international building industry guidelines. Specializing in Fenestration and Building Envelope Products (windows, entrance doors, sidelights, transoms, glazing wall systems, insulating glass products, etc.), the Institute offers the highest level of product quality analysis. The certification and inspection process provides the buyer with the assurance that the product that they are purchasing is the same product that was tested by an independent laboratory and will perform to the level which the test report reflects.