Signal by police whistle

N.J. Stat. § 39:4-122
in effect
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A driver shall, upon one blast of a police whistle given by a police officer with hand raised, bring the vehicle to a full stop, and shall not proceed again until he receives a signal so to do from the officer. Three or more blasts of the police whistle is the signal for alarm and indicates the approach of a fire engine or other danger.
Source: Open US Law by Vaquill AI (CC BY 4.0)URL: https://www.njleg.state.nj.us/legislative-activity/statutesFetched: 10/17/2026

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