Mass. Gen. Laws ch. 25, § 4C
(a) As used in this section, ''emergency'' shall mean a situation or condition which presents a threat to the public safety and welfare of the company's customers. An organized labor activity conducted for union recognition or as a tactic in contract negotiations shall not, of itself, constitute an emergency.
The attorney general on his own initiative, or upon petition by the department or by the city council in an affected city or by the board of selectmen in an affected town, may bring an action in superior court requesting the appointment of a receiver to oversee the operation of an investor-owned electric distribution, transmission or natural gas distribution company who serves less than 100,000 customers in the commonwealth. The court may appoint a receiver to operate the company, provided that the court finds that an emergency exists, and that the company has (a) materially violated standards for responding to emergencies, or (b) there is other compelling evidence that the company will not be able to comply with such standards without a receivership.