N.J. Stat. § 13:1G-21
No existing civil or criminal remedy now or hereafter available to any person shall be superseded by this act or any code, rules, regulations or orders promulgated pursuant thereto.
No ordinances or resolutions of any governing body of a municipality or county or board of health which establish specific standards for the level or duration of community noise more stringent than this act or any code, rules, regulations or orders promulgated pursuant thereto shall be superseded. Nothing in this act or in any code, rules, regulations or orders promulgated pursuant thereto shall preclude the right of any governing body of a municipality or county board of health, subject to the approval of the department, to adopt ordinances, resolutions or regulations which establish specific standards for the level or duration of community noise more stringent than this act or any code, rules or regulations promulgated pursuant thereto.
N.J.S. § 13:1G-21