105 CMR 410.140
Plumbing Connections
(A) Every required kitchen sink, bathroom sink, and shower or bathtub shall be connected to
the hot and cold water lines of the water distribution system and to a sanitary drainage system
in compliance with accepted standards as defined in 105 CMR 410.010.
(B) Every flush toilet shall be connected to the water distribution system and to a sanitary
drainage system in compliance with accepted standards as defined in 105 CMR 410.010.