Mass. Gen. Laws ch. 162, § 15: Statutes applicable to electric railroads

Section 15. An electric railroad company shall be subject to sections twenty-five, forty, forty-two, forty-six, forty-nine, fifty, seventy, seventy-one, seventy-seven to ninety-eight, inclusive, one hundred to one hundred and three, inclusive, one hundred and twenty-nine to one hundred and thirty-one, inclusive, and one hundred and forty-one of chapter one hundred and sixty-one and section one hundred and two of chapter two hundred and sixty-six.