N.J. Stat. Ann. § 40A:4-35.1

5. To the extent there is available surplus revenue collected by a municipality pursuant to chapter 62 of Title 40 of the Revised Statutes for supplying a utility service which is regulated by the Board of Public Utilities pursuant to subsection d. of N.J.S.40A:31-23, or to the extent there is available surplus revenue collected by a county or municipality from a stormwater utility established pursuant to P.L.2019, c.42 (C.40A:26B-1 et al.), an amount not to exceed five percent of the annual costs of operation of the utility may be transferred annually from the accounts of the municipal utility or county utility, as appropriate, and included in the local budget pursuant to N.J.S.40A:4-35.