The UL Mark is widely recognized by consumers, retailers and authorities who trust UL's integrity and commitment to consumer safety. With this in mind, UL tests every product to the highest standards to insure that any item that carries the UL Mark can be used by the consumer with confidence.
cUL Mark is the UL Mark for Canada. Products with this type of mark have been evaluated to Canadian safety requirements, which may be different from US safety requirements.
The Energy Efficiency Standards for Residential and Nonresidential Buildings that were established in 1978 in response to a legislative mandate to reduce California's energy consumption. The standards are updated periodically to allow consideration and possible incorporation of new energy efficiency technologies and methods.