N.J. Stat. § 13:1E-22
In order to preserve and maintain the State's pledges and covenants with the holders of any bonds issued by any public authority, no solid waste management plan shall include provisions for establishing any solid waste facility in competition with such facilities operated, or for which bonds have been issued, by any such public authority; provided, however, that every board of chosen freeholders and the Hackensack Commission is hereby authorized and empowered in the development and formulation of a solid waste management plan to enter into any contract or agreement with any public authority within any solid waste management district providing for or relating to solid waste collection and solid waste disposal. Any such contract or agreement may provide for the furnishing of solid waste facilities either by or to the solid waste management district, or the joint construction or operation of solid waste facilities. Every such contract or agreement shall conform to all the requirements of law for contracts or agreements made by any public authority, and may include such provisions for rates and charges, and for the furnishing of solid waste facilities, as the board of chosen freeholders or the Hackensack Commission, as the case may be, deems necessary in the development and formulation of a solid waste management plan to coordinate all activities relating to solid waste collection and solid waste disposal within the solid waste management district, and for the furnishing of adequate and suitable solid waste facilities therein. Every board of chosen freeholders and the Hackensack Commission, as the case may be, is hereby further authorized and empowered to purchase the bonds of any public authority, and to purchase any solid waste facilities of any public authority upon a contract or agreement therewith for any such solid waste facility purchase.
N.J.S. § 13:1E-22