Washington

Helmet Laws

• Bicycles:
  • No statewide helmet law, but many cities and counties (e.g., Seattle, King County) require helmets for all ages.

• E-Bikes:
  • No statewide helmet mandate, but helmets are strongly encouraged—and may be required locally.
  • Riders should always check city or county rules before riding.

E-Bike Classification

Washington State follows the 3-class e-bike system, which includes:

• Class 1: Pedal-assist only, up to 20 mph

• Class 2: Throttle-assist, up to 20 mph

• Class 3: Pedal-assist only, up to 28 mph

✔ E-bikes are not considered motor vehicles.
✔ No license, registration, or insurance is required for Class 1–3 e-bikes.

Where You Can Ride

• Sidewalks:
  • Generally allowed, but can be restricted by local ordinance.
  • Some cities prohibit e-bikes on sidewalks in business districts.

• Bike Lanes:
  • Class 1 & 2 allowed.
  • Class 3 allowed only if adjacent to or part of the roadway.

• Shared-Use Paths / Trails:
  • Class 1 & 2 permitted unless otherwise posted.
  • Class 3 e-bikes are typically prohibited on trails unless allowed by signage.

• Roadways:
  • All classes allowed where bicycles are permitted, except where posted otherwise.

Age Restrictions

• You must be at least 16 years old to operate a Class 3 e-bike.

• No age restriction for Class 1 or 2, though riders under 16 should be supervised.

Lights & Equipment

• For nighttime use, Washington law requires:
  • A white front light visible from 500 feet
  • A red rear reflector or light visible from 600 feet

• E-bikes must have working brakes, and reflectors on wheels/pedals or frame.

Source:

Revised Code of Washington – RCW 46.04.169 (E-Bike Definitions)