CSA International (CSA) and Underwriters Laboratories Inc. (UL) have adopted an expanded Memorandum of Understanding (MOU) and completed the first phase of a mutual acceptance program for electrical components. The expanded MOU covers 50 additional component and 11 additional end-products categories, as well as all of the 13 product categories covered in the original 1996 MOU, allowing manufacturers to obtain both UL and CSA certification and listing with a single product test conducted by either company.