N.C. Gen. Stat. § 130A-496

(1) Notwithstanding Article 64 of Chapter 143 of the General Statutes, smoking is prohibited in all enclosed areas of restaurants and bars, except as provided in subsection (b) of this section.

(2) Smoking may be permitted in the following places: A designated smoking guest room in a lodging establishment. No greater than twenty percent (20%) of a lodging establishment's guest rooms may be designated smoking guest rooms.

(3) A cigar bar if smoke from the cigar bar does not migrate into an enclosed area where smoking is prohibited pursuant to this Article. A cigar bar that begins operation after July 1, 2009, may only allow smoking if it is located in a freestanding structure occupied solely by the cigar bar and smoke from the cigar bar does not migrate into an enclosed area where smoking is prohibited pursuant to this Article. To qualify under this subsection, the cigar bar must satisfactorily report on a quarterly basis to the Department, on a form prescribed by the Department, the revenue generated from the sale of alcoholic beverages and cigars as a percentage of quarterly gross revenue. The Department shall determine whether any additional documentation is required of the cigar bar to authenticate or verify revenue data submitted by the cigar bar. This subdivision shall not apply to any business that is established for the purpose of avoiding compliance with this Article.

(4) A private club.