Electric Signs: A new standard for certification
May 31, 2013
Underwriters Laboratories (UL)—an independent, not-for-profit product safety testing and certification organization—began work on the 15th edition of its standard for electric signs 19 years ago, when the project was originally proposed as a bi-national standard for Canada and the U.S. On October 2, 2012, the new update of UL 48 was finally complete and in full effect.