New Hampshire's 3-Minute ALPR Deletion Law: The Most Restrictive in the Nation

New Hampshire requires ALPR data to be deleted within 3 minutes unless connected to an active investigation — the most restrictive law in the nation. At least 16 states have ALPR-specific statutes, with Maine (21 days), Tennessee and North Carolina (90 days), and Arkansas (150 days) also imposing retention limits.