A moped is defined as either a pedal bicycle with a helper motor or a non-pedal bicycle with a motor, which has all of the following characteristics:
- Have a cylinder capacity of no more than 50 cubic centimeters.
- Have an automatic transmission.
- Be capable of a maximum speed of no more than 30 miles per hour.
- Comply with all applicable federal motor vehicle safety standards.
If the maximum speed of the motorized bicycle/moped is greater than 30 miles per hour but less than 40 miles per hour and it is certified to meet Federal Motor Vehicle Safety Standards as a motorcycle, it may qualify as a Limited Use Motorcycle.
If a motorized bicycle/moped no longer has a restrictor plate (a mechanical part that limits the speed of a motorized bicycle/moped), the vehicle will be re-classified as a motorcycle. In this case, the customer must register, title, and insure the motor vehicle as a motorcycle and obtain a motorcycle license. Any customer who registers a motorcycle as a motorized bicycle/moped may be guilty of operating an unregistered, uninsured, uninspected, and untitled motor vehicle and the motorcycle may be towed and stored at the customer's expense.
- Operators are subject to the traffic laws, rules and regulations of the Commonwealth of Massachusetts.
- You have the right to use all public ways in the Commonwealth, except limited access or express state highways where signs prohibiting bicycles have been posted.
- You may use bicycle lanes next to various ways but are excluded from off street recreational paths.
- Operators must signal their intention to stop or turn by using either hand.
- You must keep right when passing a motor vehicle which is in the travel lane of a way.
Restrictions when operating a moped and motorized scooters
Restrictions when operating a moped/ motorized scooters
You cannot be under 16 years of age.
You must have a valid license or permit.
Mopeds should not drive at a speed greater than 25 miles per hour.
Motorized scooters should not driver at a speed greater than 20 miles per hour.
You must wear a US DOT standard helmet.
Motorized bicycles/mopeds must be registered but do not require titles.
To register your moped, bring the following to an RMV Service Center:
- Bill of Sale, for a used motorized bicycle/moped, or the manufacturer's certificate of origin, for a new motorized bicycle/moped
- 2 copies of the Application for Moped Registration
- Fee of $40 for a 2-year registration (if registered on or after November 1, the fee is $30)
After completing the transaction, you will receive a stamped moped certificate of registration along with a moped decal that must be affixed to the moped.
The Registry of Motor Vehicles will not register motorized scooters.
You may request a replacement decal if the decal has been lost or stolen. To request a replacement decal, you must submit the following in person at an RMV Service Center:
- The certificate of registration
- A replacement moped decal affidavit