Studded tires are legal in New Jersey from November 15 through April 1 each winter. Outside that window, running them on a public road is a motor vehicle violation. The state also regulates how the studs are built and installed, so a tire that is legal in another state is not automatically legal here.
The Legal Season Runs November 15 to April 1
New Jersey Administrative Code 13:20-15.2 sets the window: no studded tire may be used on a public highway before November 15 or after April 1 of any winter season.1Legal Information Institute. New Jersey Administrative Code 13:20-15.2 – Federal Requirements The dates are fixed. The state does not extend them for a late-season storm, so if snow falls on April 5, your studs still should have come off by April 1. Swap on the calendar, not the forecast.
What Makes a Studded Tire Compliant
New Jersey regulates how the studs are made and mounted, not just when you can drive on them. The manufacturer must prepare precise specifications covering the number of studs, the installation pattern, and the type of stud for each tire model submitted for approval.1Legal Information Institute. New Jersey Administrative Code 13:20-15.2 – Federal Requirements In practice, that means buying pre-studded tires from an approved manufacturer or having them installed by a dealer the manufacturer has licensed. Drilling studs into a standard tire yourself does not produce a legal tire.
The regulation also sets physical limits on the studs and the tire:
- Each stud tip may extend no more than 0.060 inches beyond the tire surface.
- At least 1/8 inch of rubber must sit between the base of the stud and the body of the tire.
- Approval will not be granted for studded tires designed to operate at recommended air pressures above 36 psi.
- Each stud must be firmly and squarely seated. Loose or angled studs are a violation.
Responsibility for proper installation rests with the manufacturer, whether the work happens at the factory or at a dealer or jobber the manufacturer has licensed.1Legal Information Institute. New Jersey Administrative Code 13:20-15.2 – Federal Requirements If an unlicensed shop installs studs you bought online, you are driving on non-compliant equipment even during the open season.
What a Violation Costs
A tire equipment violation under N.J.S.A. 39:3-72 carries a maximum fine of $25.2New Jersey Courts. Fines and Penalties of Common Motor Vehicle Offenses Running studded tires outside the legal window, or on tires with improperly installed studs, can also be charged under broader unsafe-vehicle statutes where fines run higher. These equipment violations do not add points to your driving record.
The practical consequence often matters more than the fine. An officer who finds non-compliant studs can require you to stop driving the vehicle until the problem is corrected, which may mean a tow and an unplanned tire swap.
Tire Chains as a Late-Season Option
Chains are governed separately and have no calendar window. You can fit them when roads are slippery from rain, snow, ice, oil, or any other condition that might cause skidding, but you cannot use them on improved highways when conditions do not require them, because chains damage dry pavement.3Justia. New Jersey Code 39-3-73 – Tire-Chains Chains also cannot be constructed or installed in a way that makes them likely to fly off and endanger people or property. For a storm that lands after April 1, chains are the legal fallback once your studs are off, provided you remove them when the road clears.
Non-Studded Winter Tires Are Legal Year-Round
Tires carrying the three-peak mountain snowflake (3PMSF) symbol are legal in New Jersey in every month because they have no metal components that damage pavement. They are tested under ASTM F1805 and must deliver at least 10 percent better traction on packed snow than a standard reference tire. Studded tires still hold an advantage on glare ice, which is the reason the state permits them at all during winter. For a commute that runs mostly on treated highways, a set of 3PMSF tires avoids the April 1 deadline entirely.