Smaller than most people assume — S4834 itself sets almost no operating penalties, so enforcement runs through New Jersey's existing moped statutes. For low-speed electric and motorized bicycles that means municipal-court fines, not car-level punishment:
- Unregistered — up to $100 per offense (the moped act's catch-all penalty, C.39:4-14.3t).
- Uninsured motorized bicycle — up to $200, up to 15 days, or both (C.39:4-14.3b). The much harsher uninsured-vehicle statute you may have read about ($300–$1,000 + license suspension, N.J.S.A. 39:6B-2) is written for motor vehicles — which low-speed and motorized bicycles legally are not.
- No license — a municipal fine, roughly $50–$200 depending on the provision charged (the licensing act has no penalty section of its own).
- Documents not on you while riding — up to $50, and the judge can dismiss it if you show documents that were valid on the day you were charged (C.39:4-14.3(e)).
- Under 17 — a second violation suspends your riding privilege for 30 days.
The big exception: a bike over 750 W
and capable of more than 28 mph is legally a
motorcycle, and the full motor-vehicle penalty stack applies, including 39:6B-2's $300–$1,000 fine, community service, and possible license suspension for riding uninsured. (The statute's definition is conjunctive, so both thresholds have to be crossed. A bike over only one of them sits in the statutory gap described in the classification answer above: this tool routes it to the motorcycle rules so you are not under-warned, but that is a conservative reading rather than settled law.) Separately, the MVC can suspend or revoke an e-bike registration for violations, and knowingly submitting false proof of ownership is a fourth-degree crime.
How aggressively any of this gets enforced varies by town — several departments signaled education-first during the grace period and summonses after July 19. Either way, late compliance beats rolling the dice: registration stays open, and fees stay waived through January 19, 2027.