This is a link to the Maryland Department of Labor, Licensing and Regulations. This contains information on the State and/or local adoption of the Plumbing Codes. Baltimore County and local jurisdictions under the authority of the Washington Suburban Sanitary Commission are exempt from the state plumbing laws. Please refer to the each local jurisdiction to obtain information on the local adoption of a plumbing code. Since ordinances change from time to time, please contact the local jurisdiction to obtain current information.
Maryland Law and Regulations - Maryland Board of Plumbing