Massachusetts GPS Tracking Laws: Is It Legal to Put a Tracker on a Car? (2026)

Maybe you found a small device tucked behind your rear bumper. Maybe you are tempted to drop an AirTag in an ex's car to see where they really go. In Massachusetts, the answer to "is that legal?" is more complicated than in most states, because the Commonwealth never passed a law that specifically bans GPS trackers.

That gap does not make covert tracking safe. Prosecutors charge it as criminal harassment or stalking, judges now treat it as coercive control under the state's restraining order law, and victims can sue under the Massachusetts Privacy Act. A major reform that took effect in September 2024 put secret monitoring "through technological means" squarely inside the legal definition of domestic abuse.

This guide explains who can legally track a vehicle in Massachusetts, which criminal laws cover secret tracking, what changed in 2024, and what to do if you find a tracker on your car.

Is It Legal to Put a GPS Tracker on a Car in Massachusetts?

It is legal to put a GPS tracker on a vehicle you own or lease. Tracking a car that belongs to someone else, without that person's consent, is where the trouble starts.

Here is the honest answer. Massachusetts will not charge you with a "GPS tracking" crime, because no such crime exists in the General Laws. What prosecutors and judges will do is treat the tracking as criminal harassment, stalking, or coercive control, depending on the relationship and the pattern of behavior around it.

The civil side has real teeth too. Massachusetts is one of the few states with a statutory right of privacy, so a person who is secretly tracked can sue for damages. Courts can also issue abuse prevention orders and harassment prevention orders that make continued tracking a crime.

So the practical rule looks a lot like the rule in stricter states. Track your own car, your minor child's car, or your company's fleet. Do not secretly track anyone else.

Massachusetts Has No GPS Tracking Device Statute

Many states have passed laws that make the act of installing a tracking device on another person's vehicle a standalone crime. Massachusetts has not. You can compare how other states handle this in our hub, GPS Tracking Laws by State.

Lawmakers have noticed the gap. Bills to criminalize nonconsensual electronic tracking of vehicles have been filed in recent legislative sessions on Beacon Hill, but as of mid-2026 none has become law.

Until one passes, covert tracking cases in Massachusetts are prosecuted under laws written for broader conduct. That matters in two ways. A single act of placing a tracker, standing alone, may not fit neatly into any criminal statute. But once tracking becomes part of a pattern directed at a specific person, the existing laws apply with full force.

Criminal Harassment and Stalking Cover Covert Tracking

Criminal Harassment: G.L. c. 265, s. 43A

Criminal harassment is the charge that fits most covert tracking cases. Under G.L. c. 265, s. 43A, a person is guilty if they willfully and maliciously engage in a knowing pattern of conduct or series of acts, over a period of time, directed at a specific person, that seriously alarms that person and would cause a reasonable person to suffer substantial emotional distress.

Massachusetts courts read "pattern" to require at least three separate acts. Crucially, no threat is required. Planting the tracker, repeatedly checking its location feed, showing up where the victim goes, and continuing after being told to stop can all count as acts in the pattern.

A first offense is punishable by up to 2.5 years in a house of correction, a fine of up to $5,000, or both. A second or subsequent offense can bring up to 10 years in state prison.

Stalking: G.L. c. 265, s. 43

Stalking under G.L. c. 265, s. 43 is the more serious charge. It requires the same kind of willful and malicious pattern that seriously alarms the victim, plus a threat made with the intent to place the victim in imminent fear of death or bodily injury.

Stalking carries up to 5 years in state prison, or up to 2.5 years in a house of correction and a fine of up to $1,000. Stalking in violation of a restraining order carries a mandatory minimum of 1 year. A repeat conviction carries a mandatory minimum of 2 years and a maximum of 10.

In a GPS case, the hidden tracker usually supplies the pattern, and the threat element comes from messages, confrontations, or unwanted appearances that the tracking made possible. Interstate cases can also be charged federally as cyberstalking under 18 U.S.C. 2261A, which expressly covers using an electronic system to surveil someone.

Tracking Is Now Coercive Control Under Chapter 209A (September 2024)

This is the biggest AirTag-era change in Massachusetts law. In 2024 the Legislature passed a sweeping domestic violence reform, effective September 18, 2024, that amended Chapter 209A, the abuse prevention statute.

"Abuse" between family or household members now includes coercive control. G.L. c. 209A, s. 1 defines coercive control to include "controlling, regulating or monitoring the family or household member's activities, communications, movements, finances, economic resources or access to services, including through technological means."

In plain English, secretly tracking a spouse, partner, ex, or other household member is now, by itself, grounds for a 209A restraining order. Victims no longer need to prove physical harm or fear of imminent serious harm to get protection from technological monitoring.

A 209A order can require the person to stop all contact and surveillance, leave a shared home, and surrender firearms, and violating it is a crime. Our guide to Massachusetts restraining order laws walks through the process.

If the person tracking you is not a family or household member, such as a coworker, neighbor, or acquaintance, you can seek a harassment prevention order under G.L. c. 258E instead.

Who Can Legally Track a Vehicle in Massachusetts

GPS tracking is generally lawful in these situations:

• Your own vehicle. You may track a car you own or lease, including for theft recovery.
• Parents of minors. A parent or guardian may track a vehicle driven by their minor child.
• Businesses tracking their own fleet. Companies may track company-owned vehicles. Telling drivers in writing is strongly advisable.
• Lenders and lessors. GPS units disclosed in a financing or lease agreement, often used for repossession, are lawful.
• Police with a warrant. Under United States v. Jones, attaching a GPS device to a car is a Fourth Amendment search that normally requires a warrant.
• Anyone with the driver's consent. Clear, informed consent solves most problems.

The common thread is ownership or consent. Joint ownership is murkier. Spouses sometimes assume a jointly titled car is fair game, but using it to monitor an estranged partner can still be coercive control under 209A and evidence of harassment.

Can My Employer Track My Car in Massachusetts?

Massachusetts has no statute that specifically regulates employer GPS tracking, and no law requires private employers to give notice before monitoring company vehicles.

That means employers can generally track vehicles they own, particularly during working hours. Fleet telematics, delivery routing, and mileage verification are all common and lawful.

Your personal car is a different story. The main legal check is the Massachusetts Privacy Act, G.L. c. 214, s. 1B. Around-the-clock tracking of a personal vehicle, or monitoring that follows an employee off duty, is the kind of unreasonable and substantial intrusion that courts weigh against the employer's actual business need.

If your workplace also records audio or video, remember that Massachusetts is a strict two-party consent state. See our guide to Massachusetts recording laws and our overview of surveillance camera laws.

AirTags and Item Trackers

Apple AirTags, Tile trackers, and similar item finders are analyzed the same way as a hardwired GPS unit. The law cares about the monitoring, not the brand of hardware.

Slipping an AirTag into someone's bag or wheel well to follow their movements can support criminal harassment charges, a stalking charge if threats are involved, a 209A order if the target is a family or household member, and a privacy lawsuit.

Modern phones help victims detect this. iPhones alert you when an unknown AirTag is moving with you, and Android phones scan for unknown Bluetooth trackers. Treat those alerts seriously and save screenshots of them.

Penalties for Illegal Tracking in Massachusetts

Suing Under the Massachusetts Privacy Act (G.L. c. 214, s. 1B)

Massachusetts gives tracking victims something many states do not: a statutory privacy claim. G.L. c. 214, s. 1B states that "a person shall have a right against unreasonable, substantial or serious interference with his privacy" and gives the Superior Court power to enforce that right and award damages.

Secretly logging weeks of someone's movements, including trips to doctors, churches, support groups, and homes, is a textbook example of a substantial and serious intrusion. The claim works against private individuals and against employers whose monitoring goes far beyond any business justification.

There is a flip side for would-be trackers in family disputes. Location evidence gathered through covert tracking can expose the tracker to a lawsuit and a restraining order, and judges in divorce and custody cases rarely reward that behavior.

What to Do If You Find a GPS Tracker on Your Car

1. Do not destroy it. The device is evidence, and it may not even belong to the person you suspect.
2. Photograph it in place before touching it, including where it was hidden.
3. Call local police and ask them to document and remove it. Mention any history of stalking or abuse.
4. Save tracker alerts from your iPhone or Android, plus any texts that suggest someone always knows where you are.
5. Consider a protective order. A 209A order covers family and household members and now expressly reaches technological monitoring. A 258E order covers everyone else.
6. Get a sweep if you stay worried. A mechanic or counter-surveillance specialist can check wheel wells, bumpers, the OBD port, and wiring.

If you are in danger, call 911. The national domestic violence hotline, 800-799-7233, can help with safety planning around technology.

Sources

• G.L. c. 265, s. 43: Stalking (Massachusetts Legislature)
• G.L. c. 265, s. 43A: Criminal Harassment (Massachusetts Legislature)
• G.L. c. 209A, s. 1: Definitions, Including Coercive Control (Massachusetts Legislature)
• G.L. c. 214, s. 1B: Right of Privacy (Massachusetts Legislature)
• G.L. c. 258E: Harassment Prevention Orders (Massachusetts Legislature)
• 18 U.S.C. 2261A: Stalking (Cornell Legal Information Institute)
• United States v. Jones, 565 U.S. 400 (2012) (Cornell Legal Information Institute)

Disclaimer: This article is for general informational purposes only and is not legal advice. Laws change, and how they apply depends on your specific facts. If you are facing a stalking or tracking situation, or a criminal charge, talk to a Massachusetts attorney or contact local police.