(a)
(1) In any area or establishment where smoking is not prohibited, nothing in this chapter prohibits a proprietor of an establishment from voluntarily establishing nonsmoking portions or designating the entire establishment as smoke-free.
(2) Nothing in this chapter prohibits proprietors of places of employment from providing an outdoor smoking space for their employees; except that any employer who provides an outdoor smoking area for the employees shall ensure that the smoking area is physically separated from the enclosed workplace so as to prevent the migration of smoke into the workplace through entrances, windows, ventilation systems, or any other openings.
(3) Nothing in this chapter may be construed to require employers to provide break rooms for smokers or nonsmokers.