ECN Forum Forums General Topics of the Trade General Discussion Area Event Hall/Apartment in same building

Hello to all.

I am bidding on a building remodel that will be an event hall on the lower level and an apartment on the 2nd floor. My question is what type of wiring method may I use on the 2nd floor apartment? I understand how article 518.4(A) applies to the event area on the main level. But, article 518.4(B) states that NM cable is permitted in "non-rated" construction. How do I make the determination as to this rating, without going to the AHJ?