A California wide load permit is required from the California Department of Transportation (Caltrans) any time your vehicle or load is wider than 102 inches (8 feet 6 inches). A single-trip permit costs $16, an annual permit costs $90, and both are applied for online through the Caltrans Transportation Permit System (CTPS). The permit sets your route, pilot car requirements, signage, and travel hours, and moving without one, or outside its terms, is a misdemeanor.
When a Permit Is Required
Width is the trigger most carriers run into first. California’s legal maximum is 102 inches at the widest point of the vehicle or load, and cities and counties can drop that to 96 inches on roads under their jurisdiction.1California Department of Transportation. Vehicle Widths Anything wider needs a permit before it moves on a state highway.
The same permit system covers loads that exceed other statutory limits:
- Height above 14 feet from the road surface. Loads over 13 feet 6 inches may only run on highways the owner has determined safe for that height.2California Legislative Information. California Code VEH – Section 35250
- Length above 65 feet for a standard truck-trailer combination.3California Department of Transportation. Vehicle Lengths
- Weight above the federal 80,000-pound gross vehicle cap or the 20,000-pound standard single-axle limit. California uses a bridge formula tied to axle count and spacing.4California Legislative Information. California Code VEH 35551
- Front overhang more than 3 feet beyond the front tires or bumper, or rear overhang more than two-thirds of the vehicle’s wheelbase.3California Department of Transportation. Vehicle Lengths
One important boundary: these permits only cover non-reducible loads, meaning loads that cannot reasonably be broken down into smaller, legal-sized shipments. A factory-built house, an industrial boiler, or heavy construction equipment qualifies. A stack of lumber that would fit on two legal trucks does not.
What to Have Ready Before You Apply
Precise numbers matter, and vague submissions get rejected. Before you log in, gather:
- Exact loaded width, height, and overall length, including any front or rear overhang.
- Gross vehicle weight and the weight on each individual axle. Caltrans runs these against bridge ratings on your route.
- Specific entry and exit points on the State Highway System, listing each California highway the load will travel.
- Carrier identification: legal name, contact information, and any state or federal operating authority numbers.
- Insurance documentation, including policy number, insurer name, and coverage limits. Errors in insurance information are one of the most common reasons applications are kicked back, and Caltrans verifies coverage during review.5California Department of Transportation. Insurance Requirements
How to Apply Through CTPS
All applications go through the Caltrans Transportation Permit System, an online platform where you register an account, build your route, enter vehicle and load data, and submit electronically.6California Department of Transportation. CTPS Information
Inside CTPS, the CalRoute tool automatically checks your proposed route against bridge weight ratings, vertical clearances, short-term construction restrictions, and pilot car requirements for each segment.7Caltrans Transportation Permit System. Caltrans Transportation Permit System If your load can’t clear a bridge or a low overpass, CalRoute flags it before you submit. CalRoute also assigns each segment a color classification (yellow, green, blue, brown, or red) that governs your pilot car needs and travel windows.
Permit Types, Fees, and Processing Time
Caltrans issues two main permit categories. A Single Trip Permit covers one specific move from origin to destination. An Annual Permit covers repeated moves over 12 months for vehicles that routinely haul oversize or overweight loads. Repetitive permits for recurring identical moves are also available.
Fees are set by the California Vehicle Code. A single trip permit is $16, and an annual or repetitive permit is $90.8California Department of Transportation. 2026 CVO Transportation Permits Manual – Chapter 1 Payment is made online by credit card or through an established monthly billing account. Credit card payments carry a non-refundable 2.3% transaction fee.9California Department of Transportation. Online Single Trip Permit Application and Online Credit Card Payment
Processing time depends on complexity. Annual permits require a minimum of 14 business days.10California Department of Transportation. Annual Permit Loads that need a variance (widths over 16 feet, heights over 17 feet, or lengths beyond 135 feet) must be submitted at least 30 days before the planned move. Equipment reviews and policy exception requests take at least 20 business days.11California Department of Transportation. Frequently Asked Questions Standard single trip permits with clean routes clear faster, but don’t count on same-day turnaround for anything complex.
Pilot Car and CHP Escort Requirements
Your permit will spell out how many pilot cars (also called escort vehicles) you need. The number depends on load width and on the color classification of each highway segment. Yellow routes are the least restrictive, typically wider multilane highways. Blue, brown, and red routes are progressively more restrictive, often narrower or two-lane roads.12California Department of Transportation. Single Trip Pilot Car Maps
A load wider than 12 feet generally requires at least one pilot car on yellow routes. On blue or brown routes, the same width may require two. The Caltrans permit engineer can adjust these based on route and load specifics.13California Department of Transportation. Appendix 19 Pilot Car Table for California Route Classification
Above certain widths, a California Highway Patrol escort replaces or supplements pilot cars. On yellow routes, CHP escort kicks in above 16 feet wide. On green, blue, and brown routes, the threshold drops to 15 feet. Over-height loads trigger CHP escort above 17 feet.14California Highway Patrol. Caltrans Transportation Permits
Signage, Flags, and Lighting
Both the pilot car and the oversize vehicle must carry specific equipment. Getting any of it wrong can put the load out of service on the roadside until you fix the problem.
Every pilot car must display an “OVERSIZE” sign (or “OVERSIZE LOAD,” “WIDE LOAD,” or “LONG LOAD” as applicable). The sign has a bright yellow background of at least 440 square inches, black lettering at least 6 inches tall with a 1-inch minimum brush stroke, mounted at least 48 inches above the ground and legible at 45 degrees from either side.15California Legislative Information. California Code VEH – Section 27904 Pilot cars must also fly at least one red warning flag on each side, each flag measuring at least 16 inches square.16California Legislative Information. California Code VEH – Section 28100 Flashing amber warning lights run on both the pilot car and the oversize vehicle during the move, and must be removed or covered whenever the pilot car is not actively escorting.17California Legislative Information. California Code VEH – Section 25270
The oversize vehicle itself carries warning signs, flags, and marker lights as specified in the permit. When the vehicle is running without the load that triggered the permit, those signs must be removed or covered so other drivers cannot see them.18California Legislative Information. California Code VEH – Section 35783.5 Night moves typically require amber lights on the front corners and red lights on the rear, with the exact configuration set by the permit.
When You Can Travel
California does not use a single blanket travel schedule. Restrictions depend on route color classification and load dimensions.
On yellow routes, loads that don’t need pilot cars can travel around the clock, seven days a week. Loads with pilot cars can also travel 24/7 until width exceeds 16 feet, at which point CHP handles scheduling. Green routes allow 24/7 travel for loads up to 15 feet wide during daylight and up to 14 feet wide after dark. Blue and brown routes are the most restrictive for pilot-car loads: daylight hours on weekdays only, with a Saturday and Sunday morning window from half an hour before sunrise until noon.19California Department of Transportation. Transportation Permit Special Conditions for 24/7 Travel
Urban curfews add another layer. In San Diego, Los Angeles, San Francisco, and Sacramento, curfew conditions apply when loaded width exceeds 10 feet. These curfews restrict movement during peak commuter hours, with specific windows shown on the curfew maps attached to your permit.19California Department of Transportation. Transportation Permit Special Conditions for 24/7 Travel
Caltrans permit offices close on federal holidays, and some holidays carry outright movement restrictions for oversize loads. Build blackout periods into your scheduling, especially around long weekends.
Penalties for Violations
Operating outside the terms of a permit is a misdemeanor. A conviction carries a fine of up to $500, up to six months in county jail, or both. If the violation involves weight beyond what the permit authorized, additional fines are calculated based on the excess weight under Vehicle Code Section 42030, and those weight-based fines escalate quickly.20California Legislative Information. California Code VEH – Section 35784
Beyond criminal penalties, an equipment or compliance problem (missing signs, wrong number of pilot cars, expired permit) can put the vehicle and load out of service on the roadside until corrected. The load sits where it is, potentially blocking traffic or racking up rental costs on escort vehicles and equipment, until you fix whatever triggered the stop.
State Highways Only: Local Permits Are Separate
A Caltrans permit only covers state highways. If your route includes city streets, county roads, or other locally maintained roads, you may need separate encroachment or transportation permits from those jurisdictions. This comes up most often on the first and last miles of a move, between a job site or facility and the nearest state highway on-ramp. Contact the relevant city or county public works department before the move to confirm whether additional permits are required.
Caltrans also has discretionary authority and can impose conditions beyond the standard tables, including more restrictive time windows, mandatory route changes, or additional escorts.21California Department of Transportation. Transportation Permits – Oversize/Overweight Vehicles Once the permit is issued, treat the conditions as non-negotiable, and if construction, closures, or weather force a change on the ground, call the Caltrans permit office before deviating from the approved route or schedule.