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E-bike rules: Marin County (Mt. Tam watershed, county open space)

County / MMWD · CA

The birthplace of mountain biking remains one of the most restrictive places to ride one with a motor: e-bikes are excluded from most Marin singletrack and many fire roads; paved paths vary by jurisdiction.

Class 1 ⚠️ RestrictedClass 2 ❌ Not allowedClass 3 ❌ Not allowed

Source: www.marincounty.govLast reviewed 2026-07-07

Accuracy note: compiled from official and published sources, not yet re-verified against the primary source linked below. Confirm details there before relying on them.

Access by class

Class	Status	Details
Class 1	⚠️ Restricted	Excluded from most watershed and open-space trails; limited designated routes.
Class 2	❌ Not allowed	Broadly excluded from natural-surface trails.
Class 3	❌ Not allowed	Roads only.

Change history

2026-07-19 · July 2026: the county Parks and Open Space Commission is weighing Class 1 access on about 99 miles of fire roads; public survey this summer, staff findings due September 2026. Rules unchanged today.

Common questions

Are Class 1 e-bikes allowed in Marin County (Mt. Tam watershed, county open space)?

Restricted. Excluded from most watershed and open-space trails; limited designated routes. Rules are set by County / MMWD; confirm before riding.

Are Class 2 e-bikes allowed in Marin County (Mt. Tam watershed, county open space)?

Not allowed. Broadly excluded from natural-surface trails. Rules are set by County / MMWD; confirm before riding.

Are Class 3 e-bikes allowed in Marin County (Mt. Tam watershed, county open space)?

Not allowed. Roads only. Rules are set by County / MMWD; confirm before riding.

Nearby

American River Parkway (Sacramento, CA)County California State Parks (system-wide)State Parks Lake Tahoe Basin Management UnitUSFS Acadia National Park Carriage Roads (ME)NPS American Tobacco Trail (NC)Durham, Wake & Chatham counties (segmented)

Trail and land-access rules are set by individual land managers and change without notice. This page summarizes published policy as of the last-verified date above. It is general information, not legal advice. Confirm current rules with the managing agency before riding. You alone are responsible for where you ride; riding out of class or in closed areas can mean fines, citations, and trail closures for everyone. See our Terms of Use. Figures are compiled from official and published sources and can change without notice; the linked official page is always authoritative.