Md. Code, State Fin. & Proc. § 2-802

(a) Except as provided in subsection (c) of this section, in a public building, a changing facility suitable for changing the diaper of a child under the age of 4 years shall be installed in at least one public restroom or, if the restrooms are divided by gender, in at least one men’s public restroom and one women’s public restroom if: (1) the public building is constructed on or after October 1, 2019; (2) a public restroom is constructed in a public building on or after October 1, 2019; or (3) a public restroom in a public building undergoes substantial renovation on or after October 1, 2019. (b) Except as provided in subsection (c) of this section, in a public building, a changing facility shall be installed in at least one public restroom or, if the restrooms are divided by gender, in at least one men’s public restroom and one women’s public restroom if: (1) the public building is constructed on or after October 1, 2022; (2) the public restroom is constructed in a public building on or after October 1, 2022; or (3) a public restroom in a public building undergoes substantial renovation on or after October 1, 2022. (c) A changing facility is not required to be installed under this section if a building inspector that has jurisdiction over the public building determines that the installation of a changing facility: (1) is not practicable; or (2) would result in a failure to comply with applicable building standards governing the right of access for individuals with disabilities. (d) (1) The Board of Public Works, through the Department of General Services, shall adopt standards that a changing facility must meet in order to comply with the requirements of this section. (2) The standards shall be filed with the Secretary of State.