Is Radar Detectors Legal in Massachusetts? (2026)
No — Radar Detectors are illegal in Massachusetts as of 2026.
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Quick Answer
Radar detectors are illegal in Massachusetts for all vehicles under Massachusetts General Laws Chapter 90, Section 13B. The law prohibits the use and possession of radar detectors in motor vehicles on public ways.
What the Law Says
Massachusetts General Laws Chapter 90, Section 13B prohibits the use and possession of radar detectors in any motor vehicle operated on public ways, with penalties including fines and possible vehicle impoundment.
— Massachusetts General Laws Chapter 90, Section 13B
| Category | Details |
|---|---|
| Passenger Vehicle Use | Illegal to possess or use radar detectors in any motor vehicle on public roads. |
| Commercial Vehicle Rules | Sale or distribution of radar detectors intended for use in vehicles is prohibited. |
| Penalties | Fine up to $100 for each offense; possible vehicle impoundment. |
| Age Restriction | None |
| Pending Legislation | None known |
No significant legislative changes since the last review in early 2026.
Enforcement Reality
Massachusetts State Police use laser almost exclusively, making radar detectors less effective. Enforcement is strict.
Relying solely on a radar detector is a common mistake, as laser is more prevalent. Also, using a radar detector in a commercial vehicle is illegal.
Local Exceptions
None identified. State law applies uniformly across Massachusetts. Local ordinances may still vary — check with your city or county government for any additional rules.
Bottom Line
Radar Detectors are illegal in Massachusetts. Possession or use can result in criminal charges. Do not assume enforcement is lax — penalties are real. Consult a licensed attorney if you have specific questions.
Massachusetts vs. the Rest of the US
Across the US, using a radar detector is fully legal in 44 states, restricted in 3, and illegal in 3. Massachusetts falls in the ILLEGAL category.
View the full 50-state map →Neighboring States
Laws change at state lines. Here is how bordering states compare on Radar Detectors:
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Frequently Asked Questions
Is it legal to use Radar Detectors in Massachusetts?
What are the penalties for using a radar detector in Massachusetts?
How strictly does Massachusetts enforce its radar detectors laws?
What typically triggers enforcement in Massachusetts?
Does the law on using a radar detector change at the Massachusetts border?
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Reviewed by cross-referencing the cited state statute against current legislative databases and regulatory publications.
Sources & Verification
This page was reviewed by Ethan Harper by comparing the legal status against the cited state statute. AllowedHere is an informational resource and does not provide legal advice. Consult a licensed attorney for guidance specific to your situation.
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Radar Detectors in Other States
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