N.J. Stat. § 27:23-12
The exercise of the powers granted by this act will be in all respects for the benefit of the people of the State, for the increase of their commerce and prosperity, and for the improvement of their health and living conditions, and as the operation and maintenance of transportation projects and other property by the Authority will constitute the performance of essential governmental functions, the Authority shall not be required to pay any taxes or assessments upon any transportation project or any property acquired or used by the Authority under the provisions of this act or upon the income therefrom, and any transportation project and any property acquired or used by the Authority under the provisions of this act and the income therefrom, and the bonds issued under the provisions of this act, their transfer and the income therefrom (including any profit made on the sale thereof) shall be exempt from taxation. The Legislature reaffirms that all existing facilities and property, and their operations, and management, of the authority and of the New Jersey Highway Authority, as transferred to the authority, are deemed public and essential governmental functions and are exempt from local taxes or assessments.
N.J.S. § 27:23-12