Md. Code Ann., Pub. Safety § 12-1106
This subtitle does not prevent a county or municipal corporation from enacting more stringent laws that relate to carbon monoxide alarms.
Added by Acts 2007, c. 401, § 1, eff. Oct. 1, 2007. Amended by Acts 2015, c. 151, § 1, eff. May 12, 2015; Acts 2016, c. 174, § 1, eff. Oct. 1, 2016; Acts 2016, c. 175, § 1, eff. Oct. 1, 2016.