New Jersey Statutes Title 48. Public Utilities 48 § 15-23

No company operating a street railway or railroad operated as a street railway by means of electric motors shall, between the first day of November and the first day of April in any year, use for passenger transportation any car or other vehicle not constructed with inclosed or vestibuled platforms provided with proper glazed sashes at the ends of the car and with open doorways at the side.

Any company operating any car or vehicle in violation of this section shall be liable to a penalty of twenty-five dollars for each day or part thereof any such car or vehicle shall be so operated. Such penalty may be recovered in any court of competent jurisdiction together with the costs of the suit by the person, board or authority having control of the police department of any municipality in or through which such car or vehicle shall be operated. The penalty when recovered shall be paid into the treasury of such municipality.