New Jersey Statutes Title 40A. Municipalities and Counties 40A § 2-45

Any municipal public utility shall be deemed to be a self-liquidating purpose if the cash receipts from fees, rents or other charges, and for redevelopment utilities, taxes other than taxes assessed on real property, in a fiscal year are sufficient to meet operating and maintenance costs (exclusive of depreciation and obsolescence) and interest and debt redemption charges payable or accruing in such year without recourse to general taxation or the deficit, if any, anticipated in the dedicated utility assessment budget. There may be included in such cash receipts any fees, rents and other charges collected from other departments or utilities of the local unit at a rate not in excess of the fees, rents or other charges to other consumers, customers or users, or if there be no other consumers, customers or users properly comparable, then not in excess of the comparable fees, rents and other charges of privately owned or operated utilities or enterprises. Any municipal public utility may include interest on investments and deposits and appropriated surplus as revenues, in addition to the other revenues authorized by this section, in a determination of whether that municipal public utility shall be deemed to be a self-liquidating purpose.