Marin County, CA Parking Rules: Commercial & Oversized Vehicles (2026)
Key Facts
- Code Section
- MCC 15.36.090
- Definition
- Commercial plate + length > 22 ft
- Restricted Hours
- 11:00 p.m. - 5:00 a.m.
- Fine
- $100 per overnight period
Summary
On County roads designated by Board of Supervisors resolution and posted with signs, oversized commercial vehicles (commercial-plated vehicles or combinations exceeding 22 feet) cannot be parked between 11:00 p.m. and 5:00 a.m.
15.36.090 No parking overnight of oversized, commercial vehicles. On those County roads or locations specified by the Marin County Board of Supervisors by Resolution, no oversized, commercial vehicle may be parked at those specified locations between the hours of 11:00 pm and 5:00 am. For purposes of this section, 'oversized, commercial vehicle' means a vehicle (as defined in the California Vehicle Code Section 670) or combination of vehicles, trailer and/or auxiliary equipment with a commercial license plate and overall length (as measured bumper-to-bumper or, on vehicles lacking bumpers, front-to-back) of more than 22 feet.
Full Breakdown
Marin County Code section 15.36.090 prohibits parking of oversized, commercial vehicles between 11:00 p.m. and 5:00 a.m. on County roads or locations specified by Board of Supervisors resolution. An 'oversized, commercial vehicle' is defined as a vehicle (per CVC section 670) or combination of vehicles, trailer and/or auxiliary equipment with a commercial license plate and overall length, measured bumper-to-bumper (or front-to-back on vehicles lacking bumpers), of more than 22 feet. The restriction cannot be enforced until adequate signage informing the public has been installed. The 72-hour countywide parking limit (MCC 15.36.030) also applies to commercial vehicles. Violations are infractions punishable by a $100 fine, with each overnight parking period treated as a separate violation (MCC 15.36.100).
Violations & Fines
Each overnight parking period during which the violation occurs is treated as a single infraction punishable by a $100 fine under MCC 15.36.100. Commercial vehicles parked over 72 hours may also be cited and towed under CVC 22651(k).
Frequently Asked Questions
What counts as an 'oversized commercial vehicle' in Marin County?
Are commercial vehicles allowed to park overnight in unincorporated Marin?
Sources & Official References
Other rules in Marin County
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