For the purposes of this article, the following definitions shall apply:
That area of a restaurant designated and posted by the proprietor or other person in charge, where smoking by patrons or employees shall be prohibited.
Restaurant with a seating capacity of 40 or more persons. (Bar and lounge areas primarily devoted to the purchase and consumption of alcoholic beverages shall be excluded in determining restaurant seating capacity.)
The lighting of, or the having in one's possession of any lighted cigar, cigarette, pipe, or other tobacco product.
All other areas of a restaurant unless smoking is prohibited by sanitation or fire safety codes or regulations.