No person shall ride upon the rear end of a vehicle, without the consent of the driver, and when so riding, no part of the person's body shall protrude beyond the limits of the vehicle.
N.J. Stat. Ann. § 39:4-61
Tailboard riding
Current official text: New Jersey Legislature. Digitized from the New Jersey Legislature bulk statutes download. Reproduced from public-domain New Jersey statutes; confirm against the official source for the current text. Not legal advice.