N.J. Stat. § 32:16-1
In addition to the powers conferred by this subtitle, Palisades Interstate Park Commission is authorized to construct, maintain and operate a parkway on top of the Palisades, extending from the southerly line of the park already established to the New York State line and within one thousand feet westerly from the top or steep edge of the Palisades or the crest of the slope in places where the steep Palisades rocks are absent, and, for such purpose and the acquisition of the necessary lands therefor, may apply for and accept grants or other aid from the Federal emergency administration of public works, or other boards, officers or departments of the United States. For the purpose of laying out and establishing the parkway mentioned in this section, the commission may acquire by gift, purchase or condemnation any lands or rights in lands necessary for such objects and lying within the area described in this section; but, after a copy of the map required to be made by section 32:16-2 of this Title has been filed in the office of the county clerk of Bergen county pursuant to section 32:16-3 of this Title, the right to condemn lands shall not extend west of the westerly boundary line of the parkway as shown on the map.
N.J.S. § 32:16-1