New Jersey Statutes Title 12. Commerce and Navigation 12 § 7-74.1

In addition to all other remedies permitted and duties required by law, the owner of a personal watercraft shall be jointly liable for damage incurred by another person operating the owner's personal watercraft if the owner knowingly allows the person to operate the owner's personal watercraft, the operator has not successfully completed a boat safety course required pursuant to subsection c. of section 2 of P.L.1987, c. 453 (C.12:7-61) or a written test administered pursuant to section 17 of P.L.1995, c. 401 and the operator is not exempt from the boat safety certificate requirement pursuant to subsection a. or c. of section 18 of P.L.1995, c. 401 (C.12:7-86).