Md. Code Ann., Envir. § 9-2202
This subtitle does not affect the authority of a county, municipality, or other local government to enact standards that are at least as stringent as the standards established in this subtitle.
Added by Acts 2019, c. 579, § 1, eff. July 1, 2019; Acts 2019, c. 580, § 1, eff. July 1, 2019.