In this subtitle: “Water bottle filling station” means a plumbing fixture connected to the potable water distribution system and sanitary drainage system that is designed and intended for filling personal use water bottles or containers at least 10 inches in height; and “Water bottle filling station” includes: A station that is separate from or integral to a drinking fountain; and For an interior location of a building, a station that incorporates a water filter and cooling system for chilling the water.

Except as provided in subsection (b) of this section, beginning October 1, 2025, at least one water bottle filling station or a combined water bottle filling station and drinking fountain shall: Be installed in all new construction at each location where a drinking fountain is required under the current version of the International Plumbing Code adopted by the State or State or local law or regulation; Replace a drinking fountain located in an area of a building undergoing a renovation if the renovation includes replacing the drinking fountain; and Be installed in any building undergoing a renovation if the installation of a drinking fountain is required under the current version of the International Plumbing Code adopted by the State or State or local law or regulation. The provisions of subsection (a) of this section do not apply if: A drinking fountain in a building located in a commercial or industrial area is replaced with no other renovations made; or A building located in a commercial or industrial area has potable water available through a source other than a drinking fountain, including a kitchen.

The Maryland Department of Labor shall adopt regulations to carry out the provisions of this subtitle.