Mass. Gen. Laws ch. 160, § 172A: Drinking water and sanitary toilet facilities on locomotives or cabooses

Section 172A. Every railroad corporation shall equip each locomotive used by railroad crewmen with pure refrigerated drinking water with individual, disposable cups; maintain toilet facilities on locomotives or cabooses, if cabooses are used, in a working sanitary condition; and ensure that each such toilet facility provides privacy to a person using such facility.

For the purpose of this section ''sanitary condition'' shall mean a condition of good order and cleanliness which precludes the reasonable probability of disease transmission.