A California wide load permit is required from the California Department of Transportation (Caltrans) before you move any vehicle or load wider than 102 inches (8 feet 6 inches) on a state highway. You apply online through the Caltrans Transportation Permit System (CTPS), pay $16 for a single trip or $90 for an annual permit, and then move the load under the route, escort, signage, and travel-time conditions printed on the document.1California Department of Transportation. Vehicle Widths2California Department of Transportation. 2026 CVO Transportation Permits Manual – Chapter 1
When Width Triggers a Permit
The 102-inch width ceiling is measured at the widest point of the vehicle or load. Cities and counties can tighten that further to 96 inches on roads they control.1California Department of Transportation. Vehicle Widths If any part of your load pushes past the state limit, you need a permit before the wheels turn.
The permit system is only for loads that cannot be broken down into smaller legal shipments. Caltrans calls these “non-reducible.” A factory-built house or a piece of heavy equipment qualifies. A stack of lumber that could ride on two legal trucks does not.
Width is the headline number for a wide load, but the same permit framework applies if you also exceed the state’s height (14 feet), length (65 feet for a standard combination), or weight limits, including the 80,000-pound federal gross cap and the 20,000-pound single-axle limit.3California Legislative Information. California Code VEH – Section 352504California Department of Transportation. Vehicle Lengths5California Legislative Information. California Code VEH 35551 Front overhang is capped at 3 feet beyond the front tires or bumper, and rear overhang at two-thirds of the wheelbase.
Fees and Processing Time
A single trip permit is $16. An annual permit, good for 12 months of repeated moves, is $90.2California Department of Transportation. 2026 CVO Transportation Permits Manual – Chapter 1 Repetitive permits for recurring identical moves are also available. Payment is online by credit card or through a monthly billing account; credit card transactions carry a non-refundable 2.3% fee.6California Department of Transportation. Online Single Trip Permit Application and Online Credit Card Payment
Processing depends on complexity. Annual permits need a minimum of 14 business days.7California Department of Transportation. Annual Permit Loads that need a variance, because they exceed the dimensional limits standard permits cover (heights over 17 feet, widths over 16 feet, or lengths past 135 feet), must be submitted at least 30 days ahead of the move. Equipment reviews and policy exceptions take at least 20 business days.8California Department of Transportation. Frequently Asked Questions Clean single trip requests through CTPS clear faster, but don’t count on same-day turnaround on anything complex.
Applying Through CTPS
All applications go through the Caltrans Transportation Permit System.9California Department of Transportation. CTPS Information Register for an account first, then build your application. Have this ready before you log in:
- Exact overall width, height, and length of the loaded vehicle, including any overhang.
- Gross vehicle weight and the weight on each individual axle, which Caltrans checks against bridge ratings along your route.
- A specific route listing each California state highway you intend to travel, with entry and exit points.
- Carrier identification: legal name, contact information, and any state or federal operating authority numbers.
- Insurance documentation, including policy number, insurer name, and coverage limits. Caltrans verifies proof of financial responsibility during review, and insurance errors are one of the most common reasons applications get kicked back.10California Department of Transportation. Insurance Requirements
Inside CTPS, the tool that matters most is CalRoute. When you plot your route, CalRoute checks it automatically against bridge weight ratings, vertical clearances, construction restrictions, and pilot car requirements for each segment.11Caltrans Transportation Permit System. Caltrans Transportation Permit System If a bridge or overpass won’t work, you’ll see the flag before submitting rather than after approval. CalRoute also tags each segment with a color (yellow, green, blue, brown, or red) that drives both your escort requirements and your legal travel hours.
Pilot Cars and CHP Escorts
Your permit will state exactly how many pilot cars (also called escort vehicles) you need, and the number depends on both load width and the route color. Yellow routes are the least restrictive, generally wider multilane highways. Blue, brown, and red are more restrictive, often two-lane roads.12California Department of Transportation. Single Trip Pilot Car Maps
A load wider than 12 feet generally needs at least one pilot car on a yellow route. The same load on a blue or brown route may require two. The permit engineer can adjust these numbers for a specific route or load.13California Department of Transportation. Appendix 19 Pilot Car Table for California Route Classification
Past certain widths, a California Highway Patrol escort takes over. On yellow routes, CHP escort kicks in when loaded width exceeds 16 feet. On green, blue, and brown routes, the threshold drops to 15 feet. For over-height moves, CHP escort is required past 17 feet.14California Highway Patrol. Caltrans Transportation Permits This is where cost and scheduling get difficult, so build it into your plan early.
Signs, Flags, and Lights
Both the oversize vehicle and each pilot car have to carry specific safety equipment. Missing or wrong equipment can put the whole move out of service on the roadside until you fix it.
Each pilot car must display an OVERSIZE sign (or OVERSIZE LOAD, WIDE LOAD, or LONG LOAD, as applicable): yellow background of at least 440 square inches, black letters at least 6 inches tall with a 1-inch brush stroke, mounted at least 48 inches off the ground and legible at 45 degrees from either side.15California Legislative Information. California Code VEH – Section 27904 Pilot cars also need at least one red warning flag on each side, 16 inches square minimum.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 displays the warning signs listed in the permit conditions. Any time it operates without the load that triggered the permit, those signs must be removed or covered.18California Legislative Information. California Code VEH – Section 35783.5 Nighttime moves usually need amber lights on the front corners and red lights on the rear, but the exact configuration comes from the permit.
When You Can Legally Move
California has no single travel schedule. Allowed hours depend on the CalRoute color of each segment and on the dimensions of your load.
On yellow routes, loads that don’t need a pilot car can travel around the clock, seven days a week. With pilot cars, 24/7 travel is still allowed up to 16 feet wide; past that, CHP sets the schedule. Green routes allow 24/7 travel up to 15 feet wide in daylight and up to 14 feet wide after dark. Blue and brown routes are the tightest for pilot-car loads: weekday daylight only, with a weekend window from half an hour before sunrise until noon on Saturday and Sunday.19California Department of Transportation. Transportation Permit Special Conditions for 24/7 Travel
Urban curfews layer on top. In San Diego, Los Angeles, San Francisco, and Sacramento, curfew conditions apply once loaded width passes 10 feet, restricting movement during peak commuter hours. The specific windows are on the curfew maps attached to your permit.19California Department of Transportation. Transportation Permit Special Conditions for 24/7 Travel Federal holidays close the permit offices, and some holidays carry outright movement restrictions, so build blackout dates into your schedule, especially around long weekends.
What a Violation Costs
Operating outside your permit’s terms 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 the permitted amount, additional fines apply under Vehicle Code Section 42030, and they scale with the excess.20California Legislative Information. California Code VEH – Section 35784
Equipment and compliance problems carry a separate consequence. Missing signs, too few pilot cars, or an expired permit can get the vehicle ordered out of service on the roadside. The load sits where it is, possibly blocking traffic or running up escort and equipment costs, until the problem is corrected.
A Caltrans Permit Does Not Cover Local Roads
A Caltrans permit covers state highways only. City streets, county roads, and other locally maintained roads need separate encroachment or transportation permits from the jurisdiction that controls them. This matters most for the first and last miles between a facility or job site and the nearest state highway on-ramp. Contact the public works department for each city or county on your route to confirm what else you need.
Caltrans has discretionary authority and can add conditions beyond the standard tables: tighter time windows, mandatory route changes, or extra escorts.21California Department of Transportation. Transportation Permits – Oversize/Overweight Vehicles Once issued, the permit conditions are non-negotiable. If something changes on the ground, construction, closures, weather, call the permit office before deviating from the approved route or schedule.