The BHMA Certified® Products Directory (CPD) provides an up-to-date listing of all products that have been certified to ANSI/BHMA Standards. Participation in the BHMA CPD is open to all manufacturers of builders hardware including, but not limited to, BHMA® members. Compliance with the standards is based upon a series of tests verified by independent, third-party laboratories. These tests determine if the products meet the cycle, operational, strength, security and finish performance requirements. In order to maintain the BHMA Certified status over time, these products undergo periodic recertification. See A156.18 for certified finishes.