Minnesota Engine & Jake Brake Rules

Minnesota has no statewide engine-brake ban. The state hook is the muffler law (Minn. Stat. 169.69): a working muffler, no cutout, and no sharp popping or crackling from the exhaust. The bans are local. Cities like Waseca and Milan pass 'jake braking' ordinances and post 'Vehicle Noise Laws Enforced' signs, and a MnDOT permit is needed to post on a state highway. Keep the engine brake on grades where nothing is posted.

Ban scopeLocal / posted

Muffler lawYes (the legal hook)

Where postedLocal and widespread

FineLocal ordinance penalty, often a petty misdemeanor or set fine, and the amount varies by city

A detail here is flagged medium confidence — confirm with the state DMV or the local ordinance before you rely on it.

01 The rule

How Minnesota handles engine braking

02 On the road

What to watch for

Ban scope: Local / posted
Where posted & enforced: Local and widespread. Cities such as Waseca (Chapter 70.07) and Milan pass 'jake braking' ordinances and post 'Vehicle Noise Laws Enforced' signs, and no such sign goes on a state highway without a MnDOT permit. Enforcement is thin, but watch residential edges and approaches into town.
Muffler / noise law: Yes, the real legal hook
Fine: Local ordinance penalty, often a petty misdemeanor or set fine, and the amount varies by city. The state muffler violation itself is a petty misdemeanor. Confirm the local figure with the city.

Minnesota Engine Brake FAQ

Are engine brakes banned in Minnesota?

Minnesota has no statewide ban. The restriction is local and posted on "NO ENGINE BRAKE" signs. Minnesota has no statewide engine-brake ban.

Where are the "NO ENGINE BRAKE" signs in Minnesota?

Local and widespread. Cities such as Waseca (Chapter 70.07) and Milan pass 'jake braking' ordinances and post 'Vehicle Noise Laws Enforced' signs, and no such sign goes on a state highway without a MnDOT permit. Enforcement is thin, but watch residential edges and approaches into town.

What is the fine for using an engine brake where it is banned in Minnesota?

Local ordinance penalty, often a petty misdemeanor or set fine, and the amount varies by city. The state muffler violation itself is a petty misdemeanor. Confirm the local figure with the city.

Reference information for planning, not legal advice. Traffic laws change and this can be out of date, so always confirm the current statute and obey posted signs before you rely on it. Last reviewed July 2026. Source: https://www.revisor.mn.gov/statutes/cite/169.69. See our Terms & Disclaimer.

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Minnesota Engine & Jake Brake Rules

How Minnesota handles engine braking

What to watch for

Minnesota Engine Brake FAQ

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