(2) This section does not apply to the laws of this state imposing sanitary requirements or rules adopted under the laws of this state imposing sanitary requirements. [Amended by 1977 c.582 §15; 2007 c.70 §238; 2009 c.595 §541; 2014 c.45 §49; 2015 c.736 §36; 2017 c.356 §59]