Motorcycle Noise Limits (Click here for Canada)

United States

Alabama

No statewide motorcycle noise limit laws.

Alaska

No statewide noise limit.

Arizona

Specific motorcycle noise limits, based on motorcycle model year and rate of speed, are in effect.

Arkansas

No statewide motorcycle noise limit laws.

California

A noise limit of 92 decibels applies to any motorcycle manufactured before 1970.

A noise limit of 88 decibels applies to motorcycles manufactured after 1969 and before 1973; 86 decibels applies to motorcycles manufactured after 1972 and before 1975; 83 decibels applies to motorcycles manufactured after 1974 and before 1986; 80 decibels applies to motorcycles manufactured after 1985.

Motorcycles registered in the state that are manufactured on or after 2013 or have an aftermarket exhaust system manufactured on or after 2013 must have the federal EPA noise emission label affixed to it in order to be operated, used, or parked in the state.

Colorado

Motorcycles manufactured on or after July 1, 1971 and before January 1, 1973 may not exceed a noise level of 88 decibels measured at a distance of 50 feet from the center of the lane of travel.

Motorcycles manufactured on or after January 1, 1973 may not exceed a noise level of 86 decibels measured at a distance of 50 feet from the center of the lane of travel.

These noise restrictions are not applicable for vehicles designed exclusively for racing purposes.

Connecticut

Maximum noise level when vehicle is traveling 35 mph or less in soft site: 72 decibels.

Maximum noise level when vehicle is traveling 35 mph or less in hard site: 74 decibels.

Maximum noise level when vehicle is traveling over 35 mph in soft site: 79 decibels.

Maximum noise level when vehicle is traveling over 35 mph in hard site: 81 decibels.

Soft site means a testing site covered with grass or other ground cover, while a hard site means a test site covered with concrete, asphalt, gravel, or other hard compound.

Delaware

No person shall drive a motorcycle on a public roadway unless the motorcycle is equipped with a muffler to prevent excessive or unusual noise.

District of Columbia

The maximum noise level for a motorcycle is 83 decibels.

Florida

The maximum sound levels permitted are 82dBA (35mph or less) for vehicles manufactured before January 1, 1979; and 78dBA(over 35mph) for vehicles manufactures after January 1, 1979.

Georgia

No statewide noise limit restriction.

Hawaii

All motorcycles and mopeds must be equipped with a muffler designed to limit excessive or unusual noise, and it is unlawful to modify a muffler in order to amplify the noise emitted by the motor.

Idaho

Modification of an exhaust system to increase the noise of the vehicle is prohibited.

Illinois

It is illegal to modify the exhaust system of any motor vehicle in a man

Indiana

Any motorcycle must either be equipped with a muffler or any other device that prevents noise pollution. This device must be in good working condition.

Iowa

Not statewide noise limit restriction.

Kansas

No statewide noise limit.

Kentucky

No statewide motorcycle noise limit restriction.

Louisiana

No statewide noise limit restriction.

Maine

A motor vehicle must be equipped with an adequate muffler properly maintained to prevent excessive or unusual noise. Amplification of the noise emitted by the muffler is strictly prohibited.

Maryland

Maximum acceptable noise limits for motorcycles:

  • Motorcycles manufactured between July 1, 1975 and January 1, 1988: 83 decibels.
  • Motorcycles manufactured after January 1, 1988: 80 decibels.

Massachusetts

A motorcycle may not exceed a noise limit of 82 decibels when measured at a speed of 45 mph or less.

A motorcycle may not exceed a noise limit of 86 decibels when measured at a speed of over 45 mph.

Michigan

At a distance of 50 feet, the noise limit is 86 decibels if the maximum lawful speed on the highway or street is greater than 35 mph and 82 decibels if the maximum lawful speed on the highway or street is not more than 35 mph. There can be no excessive or unusual noise.

Minnesota

It is unlawful to operate a motorcycle in violation of the motor vehicle noise rules adopted by the Pollution Control Agency.

Mississippi

Every motor vehicle shall at all times be equipped with a muffler in good working order and in constant operation to prevent excessive or unusual noise. No person shall use a muffler cutout, bypass, or similar device upon a motor vehicle on a highway.

Missouri

No statewide noise limit restriction.

Montana

The maximum noise level is 96dba measured at 20 inches.

Nebraska

Every vehicle shall be equipped, maintained, and operated so as to prevent excessive or unusual noise. No person shall drive a motor vehicle on a highway unless such motor vehicle is equipped with a muffler or other effective noise-suppressing system in good working order and in constant operation. It shall be unlawful to use a muffler cutout, bypass, or similar device on any motor vehicle upon a highway. No person shall modify or change the exhaust muffler, the intake muffler, or any other noise-abatement device of a motorcycle in a manner such that the noise emitted by the motorcycle is increased above that emitted by the motorcycle as originally manufactured.

Nevada

Motorcycles traveling 35 mph or less may not be operated at a noise level above 82 decibels, and motorcycles traveling over 35 mph may not be operated at a noise level above 86 decibels.

New Hampshire

No person shall operate a motorcycle which has a measured noise level of more than the following:

  • For all motorcycles, 92 decibels while the engine is operating at idle speed; or
  • For motorcycles with less than 3 or more than 4 cylinders, 96 decibels while the engine is operating at 2,000 revolutions per minute or 75 percent of maximum engine speed, whichever is less; or
  • For 3 and 4 cylinder motorcycles, 100 decibels while the engine is operating at 5,000 revolutions per minute or 75 percent of maximum engine speed, whichever is less.

New Jersey

Every motor vehicle with a combustion motor must at all times be equipped with a muffler in good working order and in constant operation to prevent excessive or unusual noise and annoying smoke and no person shall use a muffler cutout, bypass, or similar device on a motor vehicle.

Motorcycles shall be equipped with muffler systems designed especially for motorcycles.

New Mexico

Every motor vehicle must be equipped with a muffler that prevents “excessive or unusual” noise.

New York

The maximum allowable sound level is 82 decibels for any motorcycle traveling at any speed. This is to be measured at a distance of 50 feet from the center of the lane in which the motorcycle is traveling.

North Carolina

No statewide noise restriction requirement.

North Dakota

Motorcycles must have an exhaust system with a muffler or other mechanical device to reduce engine noise. Cutouts and bypasses in the exhaust system are prohibited.

Ohio

When operated at a speed of 35 mph or less, the maximum noise limit is 82 decibels based on a distance of not less than 50 feet from the center of the line of travel.

When operated at a speed of more than 35 mph, the maximum noise limit is 86 decibels.

Oklahoma

No statewide motorcycle noise limit restriction.

Oregon

The maximum sound level is 99 dBA for a stationary test at 20 inches. Standards vary further from city to city and county to county.

Pennsylvania

Every motorcycle must be constructed, equipped, maintained, and operated so that the vehicle does not exceed the sound level for the vehicle.

Every motor vehicle must be equipped with a muffler or other effective noise suppressing system in good working order. No muffler or exhaust system can be equipped with a cutout, bypass, or similar device.

A person must not modify the exhaust system of a motorcycle in a manner that will amplify or increase the noise emitted by the motor vehicle above the maximum levels permitted by Department regulations.

Rhode Island

Every vehicle must have a muffler in good working order and in constant operation to prevent excessive or unusual noise and annoying smoke. The use of a cutout, bypass, or similar device is prohibited.

South Carolina

No statewide motorcycle noise limit restriction.

South Dakota

Every motorcycle must at all times be equipped with a muffler in good working order and in constant operation to prevent excessive or unusual noise.

Tennessee

No statewide noise limit restriction.

Texas

A motor vehicle must be equipped with a muffler in good working condition that continually operates to prevent excessive or unusual noise. A person may not use a muffler cutout, bypass, or similar device on a motor vehicle.

Texas law defines a “motor-driven cycle” as a motorcycle equipped with a motor that has an engine piston displacement of 250 cubic centimeters or less.

A motor-driven cycle may not drive at a speed of more than 35 mph during nighttime or periods of poor visibility unless the cycle is equipped with a headlamp or lamps that reveal a person or vehicle 300 feet ahead.

A motor-driven cycle must be equipped with either multiple-beam headlamps or single beam headlamps sufficient to reveal a person or vehicle at a distance of 100 feet when the cycle is operated at a speed of less than 25 mph, at a distance of at least 200 feet when the cycle is operated at a speed of 25 mph or more, and at a distance of at least 300 feet when the cycle is operated at a speed of 35 mph or more.

Utah

No statewide noise restriction.

Vermont

Any exhaust system on a motorcycle will be deemed defective if any changes, modifications, alterations, deletions, or adjustments have been made which would cause the exhaust system to generate a higher sound level than would be generated by the exhaust system customarily installed by the manufacturer as original equipment.

Virginia

The exhaust system must be no louder than the original factory equipment.

Washington

No person may modify the exhaust system of a motorcycle in a manner that will amplify or increase the noise emitted by the engine of the vehicle above that emitted by the muffler originally installed on the vehicle.

West Virginia

No statewide motorcycle noise limit restriction.

Wisconsin

No person may operate a motorcycle without a functioning muffler.

Wyoming

Every vehicle must be equipped, maintained, and operated so as to prevent excessive or unusual noise. Every motor vehicle must at all times be equipped with a muffler or other effective noise suppressing system in good working order and in constant operation. No person may use a muffler cutout, bypass, or similar device.

Puerto Rico

No territorial noise limit.


Canada

Alberta

No provincial motorcycle noise limits.

British Columbia

A motorcycle must have a properly functioning muffler.

Manitoba

No province-wide noise restriction.

New Brunswick

The city of Bathurst has a law limiting motorcycle exhaust noise to 92 decibels.

Newfoundland and Labrador

No province-wide motorcycle noise limit restriction.

Northwest Territories

No person may operate a vehicle unless the muffler on the exhaust system is designed to prevent unnecessary engine noise.

Nova Scotia

A person may not start, drive, turn, or stop any motor vehicle in a manner which causes any loud and unnecessary noise from the engine, exhaust, or braking system or from the contact of tires with the roadway.

Nunavut

No person shall operate a motor vehicle on a highway in any manner that causes a loud or unnecessary noise from the exhaust or braking system of the vehicle or from the contact of the tires of the vehicle with the highway. Local municipal councils may set local noise limits.

Ontario

Every motor vehicle or motor-assisted bicycle must be equipped with a muffler in good working order and in constant operation to prevent excessive or unusual noise and excessive smoke. No person may use a muffler cut-out, straight exhaust, gutted muffler, hollywood muffler, by-pass, or similar device on a motor vehicle or motor-assisted bicycle.

Prince Edward Island

There is no province-wide motorcycle noise limit law.

Quebec

No province-wide motorcycle noise limits restriction. Motorcyclists may be ticketed by a peace officer if the noise from a motorcycle is deemed excessive.

Saskatchewan

A motorcycle must have 1 or more mufflers that ensure exhaust gases are cooled, and that effectively reduce combustion noise.

Yukon

No person may create or cause the emission of any loud and unnecessary noise from the motor vehicle, any part thereof, or anything or substance that the motor vehicle or part of the motor vehicle comes into contact with.

No person may operate a vehicle on a residential street within a municipality between the hours of 10 p.m. and 7 a.m. so as to disturb residents of that street unduly.

Every motor vehicle propelled by an internal combustion engine must be equipped with a properly functioning muffler.