Mercer County, NJ Noise Ordinances: Amplified Music & Outdoor Sound (2026)

The Park Commission's Rules and Regulations bar amplified sound outright unless the Commission has authorized it in writing beforehand: no person shall use loud speakers, public address systems or amplifiers within a County Park or Recreation Area without first having obtained written permission in advance from the Park Commission. The clause follows directly after the rule requiring written permission for any concert or public entertainment, and both sit under the same part of the rulebook that sets the 50-person group use permit threshold, so an event organizer planning to run a PA system for a wedding, festival, or sports tournament in a Mercer County park needs the Commission's written sign-off for the sound equipment specifically, separate from any group use or picnic permit covering the gathering itself.

The rules do not set a decibel limit or a cutoff time for amplified sound; the control mechanism is prior written authorization rather than a numeric threshold, meaning the Commission can grant, deny, or condition permission for a given event. Applications and questions about event permits, including sound equipment, run through the Park Commission's permits line at (609) 443-8560, ext. 115. Violations of the loudspeaker rule fall under the same Penalties section that applies across the Rules and Regulations, and Park Rangers, reachable at (609) 443-8956 during open hours, can respond on-site to unauthorized amplified sound.