The Vinyl Manufacturers Association is the consumers assurance of quality.
The VMA has been established to develop product performance standards to govern all manufacturers and institute a comprehensive accreditation program to ensure ongoing compliance with these specifications. The primary purpose of the VMA standards is to instill consumer confidence by providing assurance to the contractor and the home owner that the vinyl extrusions they are purchasing are from an accredited manufacturer and are produced to the quality levels as written in the VMA standards.