New Hampshire

How the law defines it: Three-class system. Pedaled vehicle with motor under 750 W. Class 1: pedal-assist to 20 mph. Class 2: throttle, to 20 mph. Class 3: pedal-assist to 28 mph. Legally a bicycle.

Helmet

Required for all bicycle riders under 16 on a public way, and for anyone under 18 riding or as a passenger on a Class 3.

Minimum age

Class 3: 16 (younger riders may be passengers on a Class 3 built for passengers).

Speed limit or cap

20 mph motor assist (Class 1 and 2), 28 mph (Class 3)

Motor power cap

Under 750 W

License, registration, insurance

No driver's license, registration, title, plates or insurance.

Also worth knowing

Manufacturers must label class, top assisted speed and wattage. Class 3 must have a speedometer. Tampering with speed capability without relabeling is prohibited. Cities and towns may require bicycle licensing (RSA 265:149).

How the law defines it: Covered by New Hampshire's broad "electric personal assistive mobility device" (EPAMD) definition: any electric self-propelled device for one person, regardless of number of wheels, with a top speed under 20 mph. Not a vehicle; rider has pedestrian rights and duties.

Helmet

Not addressed in statute.

Minimum age

None in statute.

Speed limit or cap

Device top speed must be under 20 mph to qualify

Motor power cap

None in statute

License, registration, insurance

Not a vehicle; no license or registration in statute.

Also worth knowing

Front, rear and side reflectors and a working brake required; white front lamp from 1/2 hour after sunset to 1/2 hour before sunrise. May be parked on a sidewalk unless signs say otherwise. Fines: warning, then $5, then $10. Stand-up e-scooters with a top speed of 20 mph or more do not fit this definition, and statute does not say how they are treated. New Hampshire has no separate e-scooter law.

How the law defines it: Covered by New Hampshire's broad "electric personal assistive mobility device" (EPAMD) definition: any electric self-propelled device for one person, regardless of number of wheels, with a top speed under 20 mph. Not a vehicle; rider has pedestrian rights and duties.

Helmet

Not addressed in statute.

Minimum age

None in statute.

Speed limit or cap

Device top speed must be under 20 mph to qualify

Motor power cap

None in statute

License, registration, insurance

Not a vehicle; no license or registration in statute.

Also worth knowing

Front, rear and side reflectors and a working brake required; white front lamp from 1/2 hour after sunset to 1/2 hour before sunrise. May be parked on a sidewalk unless signs say otherwise. Fines: warning, then $5, then $10. Applies to electric skateboards and Onewheel-style boards because the definition covers any number of wheels. Boards that can reach 20 mph or more fall outside it, and statute does not say how they are treated.

How the law defines it: Covered by New Hampshire's broad "electric personal assistive mobility device" (EPAMD) definition: any electric self-propelled device for one person, regardless of number of wheels, with a top speed under 20 mph. Not a vehicle; rider has pedestrian rights and duties.

Helmet

Not addressed in statute.

Minimum age

None in statute.

Speed limit or cap

Device top speed must be under 20 mph to qualify

Motor power cap

None in statute

License, registration, insurance

Not a vehicle; no license or registration in statute.

Also worth knowing

Front, rear and side reflectors and a working brake required; white front lamp from 1/2 hour after sunset to 1/2 hour before sunrise. May be parked on a sidewalk unless signs say otherwise. Fines: warning, then $5, then $10. Applies to electric unicycles because the definition covers any number of wheels. Unicycles that can reach 20 mph or more (many can) fall outside it, and statute does not say how they are treated.