Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 159 1/2 § 13

(a) The division shall establish a program to reduce greenhouse gas emissions from transportation network vehicles. To the extent permitted under federal law, the program shall establish requirements for transportation network companies, including, but not limited to, vehicle electrification and greenhouse gas emissions requirements. Such requirements shall include, but shall not be limited to, a requirement for said companies to submit biennial plans to gradually increase zero-emission transportation network vehicles and reduce greenhouse gas emissions to meet goals set by the executive office of energy and environmental affairs. If the division determines that vehicle electrification requirements alone would be sufficient to achieve the greenhouse gas emissions goals set by the executive office of energy and environmental affairs, the division may establish requirements for vehicle electrification without establishing separate requirements for greenhouse gas emissions. The division shall, to the extent practicable, minimize any negative impacts of the program on drivers from neighborhoods and municipalities that have an annual median household income of not more than 65 per cent of the statewide annual median household income.

(b) The division shall establish regulations to implement the program established in subsection (a).