Many types of certification exist in a free market economy. Considering the purchase of an electrical appliance? Look for the U.L. tag that indicates whether the product has been tested and certified by Underwriters’ Laboratories. The Better Business Bureau was established to help consumers determine which businesses have built a reputation for fair and honest dealings with the community. In our own profession, ASE certification confers a stamp of professionalism and competence on those who have successfully completed ASE’s nationally recognized certification tests.