Transportation permits

Per the State of California’s Streets & Highways Code (SHC), transportation involving the operation of oversize and/or overweight vehicles on roads maintained by the County of Marin requires a permit from the Department of Public Works — Land Development Division. County of Marin maintained roads vary in topography, width, and limited site distances and may be unsafe for vehicles over certain lengths or weights to travel. Likewise, some bridges and roads were constructed many years ago and may not be safe for vehicles over certain lengths or weights to travel. To minimize disruption to County residents and damage to the County’s roads, the Department of Public Works — Land Development Division will consider the type of vehicle and proposed route in its review of your application.

Please refer to the information below to determine the type of permit appropriate for your transportation over County of Marin maintained roads.

Trip Transportation Permit (TTP)

• This type of permit is valid for one trip.
• Due to weight and/or length restrictions, TTP applicants should confirm their route on Marin Maps.
• Applicants must be prepared to comply with all permit regulations.
• Applicants must provide evidence of liability coverage in the transportation company’s name in an amount not less than $1,000,000 per occurrence and $2,000,000 aggregate, that names the County of Marin as an additional insured.
• Fee is $16.00 per trip.

Annual Trip Transportation Permit (ATTP)

• This type of permit is issued for one piece of equipment and is valid for 12 months from date of issue.
• Due to weight and/or length restrictions, ATTP applicants should confirm their route on Marin Maps.
• Refer to the Length Limits section below to determine if your trip also requires a Motor Vehicle > 36’ and/or Tour Bus Special Permit (see below).
• Applicants must be prepared to comply with all permit regulations as well as any special provisions attached to the permit. For more details see Marin County Code Section 13.08.020.
• Applicants must provide evidence of liability coverage in the transportation company’s name in an amount not less than $1,000,000 per occurrence and $2,000,000 aggregate, that names the County of Marin as an additional insured.
• Annual fee is $75.00.

Motor Vehicle > 36’ and/or Tour Bus Special Permit

• This type of permit is typically valid for one trip although one permit can include multiple vehicles making the same trip.
• Due to weight and/or length restrictions, long vehicle and tour bus permit applicants should confirm their route on Marin Maps .
• Applicants must be prepared to comply with all permit regulations as well as any special provisions attached to the permit.
• Applicants must provide evidence of liability coverage in the transportation company’s name in an amount not less than $1,000,000 per occurrence and $2,000,000 aggregate, that names the County of Marin as an additional insured.
• Fee is $96.00 per application.