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Marin County e-bike rules

These local rules apply on top of California state e-bike law.

County ordinance · Checked 2026-10-29

Classes: Class 1 and 2 on county paved paths. Class 3 kept off bike paths: roads, bike lanes and park parking lots only.
Trails & paths: Bike speed limit on county paths is 15 mph, and 10 mph on some. E-bikes stay banned on unpaved Open Space District trails.
Age & helmet: Since July 1, 2025 (Marin County Code 15.58.030): no one under 16 may ride a Class 2 e-bike, and every Class 2 rider must wear a helmet at any age. Applies in unincorporated Marin and County parks; after 60 days of warnings, a violation is a $25 infraction.
Also: County pilot under Vehicle Code 21214.5 (AB 1778), Ordinance 3833 adding chapter 15.58; it ends Jan 1, 2029. Cities and towns in Marin adopt their own versions.

Local rules change. Check the official source before you ride. This is a summary, not legal advice.

Other California places with local rules