This final rule implements a HUD Building Product Standards and Certification Program proposed rule and adopts the following Use of Materials Bulletins: 38j Grademarking of Lumber, 60a Construction Adhesives for Wood Floor Systems, 70b Particleboard Interior Stair Treads, and 111 Fenestration Products (Windows and Doors). It also references related national voluntary consensus standards, provides a labeling and third party certification procedure to assure that the building products used in HUD programs meet the appropriate national voluntary consensus standards, supplements the HUD Building Product Standards and Certification Program by requiring that additional information be included on the label, tag, or mark that each manufacturer would affix to a certified product, and specifies the frequency with which products must be tested in order to be acceptable to HUD. The final rule also allows the use of American Society for Quality Control (ASQC/ISO) 9000 series standards to be used as voluntary guidelines in any quality review.