N.J. Stat. § 48:15-43.3
Whenever upon the application of any traction company, or company operating or authorized by the laws of this State to operate a street railway or railroad operated as a street railway or an elevated railroad or a subway by means of an overhead trolley system, the Board of Public Utility Commissioners has approved or hereafter shall approve the operation of vehicles of the character described in section 48:15-41 of this Title in substitution for the operation of street railway cars or substituted autobuses in the operation of any line or part thereof of such company in accordance with sections 48:15-41 to 48:15-43 of this Title, and the governing body of any municipality by resolution has designated or hereafter shall designate any public street, highway or public place to be used by such substituted vehicles in lieu of any public street or highway or private right-of-way constituting the route or any part thereof of such street railway line, elevated railroad or subway or part thereof, or as an extension of such line, and the location therein of the necessary posts and poles, such company is hereby authorized, with the approval of the Board of Public Utility Commissioners, to operate such substituted vehicles upon such designated street, highway or public place, and upon obtaining such approval to erect and maintain such posts, poles, wires and appurtenances thereto as may be necessary to operate such substituted vehicles by the overhead trolley system therein.
N.J.S. § 48:15-43.3