New Jersey Statutes Title 48. Public Utilities 48 § 12-29

Every railroad company shall commerce its proposed railroad within six months from the date of its organization. Where the road is not more than fifty miles in length, the company shall open and complete at least one track within two years of the commencement. Where the road exceeds fifty miles in length the company shall have an additional six months to complete each twenty miles of road in excess of fifty. The company shall open fifty miles of road for public use as soon as fifty miles of track are laid.