N.J. Stat. Ann. § 32:1-35.5

The Port Authority shall be required to pay no taxes or assessments upon any of the property acquired or used by it for air terminal purposes; but this shall not be construed to prevent the Port Authority and municipalities from entering into agreements for the payment of fair and reasonable sums by the Port Authority annually in accordance with legislation heretofore adopted by the two States, to the end that such municipalities may not suffer undue loss of taxes and assessments by reason of the acquisition and ownership of property by the Port Authority for air terminal purposes.