Massachusetts

According to Massachusetts law, a moped is a “motorized bicycle.” In order to be classified as a moped, the vehicle must:

• 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.

A moped sticker, issued by the RMV, must be affixed to the moped. This sticker will not be issued unless the vehicle meets the above requirements.

Operating Requirements

• Moped operators are subject to the traffic laws, rules and regulations of the Commonwealth.
• Mopeds will 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.* Mopeds may use bicycle lanes next to various ways but are excluded from off street recreational paths.
• Moped operators must signal their intention to stop or turn by using either hand.
• Mopeds may keep right when passing a motor vehicle which is in the travel lane of a way.

Restrictions When Operating a Moped. Mopeds will not be operated:

• By any person under 16 years of age.
• By any person who does not have a valid license or permit.
• At a speed greater than 25 miles per hour.
• Without the operator and any passenger wearing a DOT standard helmet.

Taken from Massachusetts RMV moped page.