UL Recognized 498, 514A, 943, 1059, and NEC 210.52(C). CUL Recognized 22.2 #s 42, 158, and 18.1-04, UL Listed Receptacle: E60120, Complies with NEC Code 406.5(E), cETLus Intertek 4004534 Conforms to UL STD.514A and 498, Certified to CSA STD.C22.2., No.18.