780 CMR 21.00 — Chapter 21: Hydronic Piping Amendment

21.00 Chapter 21: Hydronic Piping Amendment

780 CMR: MASSACHUSETTS AMENDMENTS TO THE INTERNATIONAL BUILDING CODE 2021

780 CMR 51.00: MASSACHUSETTS RESIDENTIAL CODE (Amendments to the 2021 International Residential Code)

CHAPTER R21: HYDRONIC PIPING Revise and replace section M2101.3 Protection of potable water as follows: M2101.3 Protection of potable water. The potable water system shall be protected from backflow in accordance with the provisions of the Department of Environmental Protection and/or the local water purveyor, as applicable.