N.J. Stat. § 32:1-35.65
Any declarations contained herein with respect to the governmental nature and public purpose of the world trade center, Hudson tubes and Hudson tubes extensions and to the exemption of the world trade center, Hudson tubes and Hudson tubes extensions property and instruments relating thereto from taxation and to the discretion of the port authority with respect to said facilities shall not be construed to imply that other port authority facilities, property and operations are not of a governmental nature or do not serve public purposes, or that they are subject to taxation, or that the determinations of the port authority with respect thereto are not conclusive. The powers hereby vested in the port authority and in any subsidiary corporation incorporated for any of the purposes of this act (including but not limited to the power to acquire real property by condemnation) shall be continuing powers and no exercise thereof by the port authority or a subsidiary corporation incorporated for any of the purposes of this act shall be deemed to exhaust them or any of them.
N.J.S. § 32:1-35.65