N.J. Stat. § 40A:26A-15
A local unit, pursuant to an agreement with one or more other local units or the State, may bear the entire cost of the acquisition or construction of sewerage facilities and issue bonds therefor, or may share all or part of these costs with the other government. If the cost of acquisition or construction is shared, bonds may be issued by each of the participating governments for part or all of each government's respective costs, or a local unit may issue bonds for the entire cost of the sewerage facilities to be acquired or constructed, with the share of the costs of each of the other participating governments to be repaid to the issuing local unit in annual installments with a period agreed to by the parties but not to exceed 40 years. The agreement shall prescribe the rate or rates of interest on the annual installments and such other terms and conditions as agreed to by the parties. Agreements made hereunder shall be authorized by resolution or ordinance of the governing bodies of the participating parties, or in the case of the State, the Commissioner of Environmental Protection. Annual installment payments may include payment of the agreed share of a participating government's operating and maintenance costs, including the costs of any improvements, extensions, enlargements or reconstruction.
N.J.S. § 40A:26A-15