(1) A casino that is in existence on the effective date of this section may allow smoking in the gaming area of the casino. Section 12603 applies to a casino that is not in existence on the effective date of this section and to all areas of a casino not part of the gaming area. A food service establishment in or part of a casino is subject to section 12905. However, any part of the gaming area where food and beverage is taken by patrons for immediate consumption is not considered a food service establishment under this part or part 129.

  (2) A casino that is in existence on the effective date of this section shall comply with section 12603(2) for all areas of the casino not part of the gaming area. Section 12606 does not apply with respect to employees working in the gaming area of a casino where smoking is allowed under this section. However, section 12606 does apply with respect to employees working in areas other than the gaming area of a casino.

  (3) As used in this section, “gaming area” means that term as defined in R 432.1103 of the Michigan administrative code.