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Is UL certification required by the National Electric Code for electrical equipment?

Question asked by cliff4 on Oct 9, 2017
Latest reply on Apr 8, 2019 by tmartin311

I am part of a team building an indoor farm in Pahrump, NV, and we are trying to figure out whether the electrical equipment we purchase, some of which will be coming from outside the US, is required to be UL certified. Our permitting authority uses the NEC 2005 as its acting code. 


Is there are requirement in the NEC that electrical equipment be UL or otherwise certified? Thanks!