New Jersey Statutes Title 48. Public Utilities 48 § 15-42

Any such company which shall make substitution as provided in section 48:15-41 of this Title for all street car service upon any line or part thereof, may remove any of its street railway tracks including elevated and subsurface structures in, over or under any such street or highway which by reason of such substitution shall not, during the period of such substitution, be required for street car operation.

Such company, upon obtaining the approval of the Board of Public Utility Commissioners for such resumption, may resume street car operation, and if the track, elevated or subsurface structures necessary for such operation have been removed or covered, may reconstruct and restore the same; but such company shall comply with any agreement heretofore or hereafter made with the municipal or other board or body having charge of any street or highway in which such line or part thereof is located with respect to such removal or reconstruction.