Know Where Every Truck
Can Legally Operate.
Nobody buys a CARB tracker. They buy “don’t send a truck somewhere it can’t legally run.” Tell X3 the truck and the route and it answers in seconds — Allowed, Restricted or Not compliant — with the reason, the documents you need and the truck that can go instead.
“Can Truck 12 Take This Load Into California?” Nobody Knows in Time.
Dispatch asks, somebody Googles it, somebody calls compliance, and the load goes out anyway — and the fine, the registration hold or the stranded trailer shows up later. The rules that decide where a truck can run are real and they change: California’s Clean Truck Check tests and fees, the Truck & Bus Regulation that already restricts older diesels, EPA and state and local access rules. The truck that was fine last quarter can be out of compliance today.
The answer exists. It just isn’t in the room when dispatch needs it.
One Truck. One Route. One Verdict.
Give X3 the truck — VIN, engine model year, weight class, fuel, home base — and the route. It matches the vehicle against every rule that restricts it and returns the verdict, the reason, the documents required and, when the answer is no, the truck that can go instead.
Operating eligibility by engine model year under California’s Truck & Bus Regulation — the older diesels already restricted, so you replace or retire before one strands a load.
CARB Clean Truck Check: the periodic emissions test, the annual compliance fee and the DMV registration hold that follows a miss — every deadline tracked.
EPA and state, regional and municipal access rules, including low-emission zones, resolved for the route you named.
Required documents, the exemption to verify, the test to schedule, or the alternative truck — named, not implied.
A verdict, not a lookup. Allowed, Restricted or Not compliant — with the reason attached.
Truck Plus Route. Go or No-Go, in Seconds.
A sample dispatch verdict the way X3 Clean Truck shows it — and below it, the live Clean Truck Check applicability engine you can try right now.
- Pre-2010 engine is restricted from operating in California under the Truck & Bus Regulation (CARB) — verify the engine family and any exemption with CARB
- Clean Truck Check: no current periodic test on file for a vehicle over 14,000 lb GVWR operating in California
- Alternative: Truck 12 (2014 diesel, test current, fee paid) clears the route today
- Plan: Truck 07 flagged for replacement in the fleet plan — 3 more trucks in the same position
Every Rule That Restricts a Truck. Kept Current.
X3 knows the emissions and access rules that decide where a truck can legally run — federal, state, regional and municipal — and refreshes them as the agencies publish changes, so a dispatch answer is never stale.
Five Rule Sets. One Answer.
Clean Truck Check
Periodic emissions testing and the annual compliance fee for non-gasoline vehicles over 14,000 lb operating in California.Truck & Bus
Which engine model years may operate in California at all — the older diesels already restricted.Registration holds
The hold that follows a missed test or fee, and how to clear it.Federal emissions
Engine certification and federal requirements that travel with the truck.Zones & ports
State, regional, municipal and port access rules and low-emission zones on the route.Add the Fleet. Ask the Question. Act on the Verdict.
Three steps, no hardware and no new telematics — you can be running dispatch verdicts the same day.
Add your fleet
Enter your trucks — VIN, engine model year, weight class, fuel, home base — or upload the roster. X3 builds an emissions and operating-eligibility profile for every vehicle.
Ask the dispatch question
Truck plus route. X3 matches the vehicle against every rule that applies where it’s going.
Read the verdict
Allowed, Restricted or Not compliant — the reason, the documents, the test or fee that’s due, and the alternative truck.
Act before the deadline
Tests scheduled, fees paid, exemptions verified, registration holds cleared — each one tracked to its date.
Plan the fleet
See which trucks create the most access risk and which to replace first, with the cost of waiting.
Truck. Route. Verdict. Then the plan.
Legal Last Week Isn’t Legal Today.
Tests come due, fees renew, engine years age out, zones expand, agencies publish. X3 Clean Truck watches every truck’s standing against the rules that apply to it and tells you before dispatch finds out at the gate.
Test cadences, fee renewals, engine-year cutoffs, zone rules and agency updates.
The truck about to flip from Allowed to Restricted, and the deadline that flips it.
The test to book, the fee to pay, the exemption to file, the truck to swap.
Replacement order by access risk and the cost of waiting.
A registration hold shouldn’t be how you learn a test was missed. X3 tells you a month before.
Your Whole Fleet. Where It Can and Can’t Run, Right Now.
One view of every truck’s standing — ready, restricted, at risk — the deadlines that matter this month, the Fleet Access Score, and the replacement plan with the five-year cost of waiting.
One truck or a thousand. One answer to “can it go?”
Give Us the Truck.
We Tell You Where It Can Go.
Clean Truck only knows what you tell it about the fleet. Bring the VIN, engine model year, weight class, fuel and home base for every truck, and the routes you actually run. When a test is passed or a fee is paid, log it and the verdict updates the same day. Add a truck the week you buy it; retire it the week you sell it. Keep that current and the answer is always ready when dispatch asks.
Every Load Goes Out on a Truck That Can Legally Run It.
A fleet that checks access before it dispatches has fewer fines, fewer registration holds, fewer stranded trailers at the gate — and a replacement plan built on real access risk instead of guesswork.
The test, the fee and the engine-year cutoff a month out.
A verdict in seconds, with the alternative truck named.
Replace the trucks that create the most access risk first.
One Plan That Scales With Your Fleet.
Every truck included, every rule set included — and the more trucks you check, the less you pay per truck.
- ✓Dispatch verdicts — Allowed / Restricted / Not compliant
- ✓Clean Truck Check test & fee deadlines, DMV holds
- ✓Truck & Bus eligibility by engine year
- ✓Fleet Access Score & replacement planning
- ✓Every verdict cited to the rule that decides it
| Up to 10 trucks | $99 |
| 25 trucks | $249 |
| 50 trucks | $499 |
| 100 trucks | $749 |
| 250 trucks | $1,499 |
| 1,000 trucks | $5,249 |
Decision support grounded in the applicable CARB, EPA and state program rules, cited to the source — not legal advice, not a CARB or agency determination, and not affiliated with CARB, the EPA, any DMV or any agency. Verify final eligibility, exemption and fee status with the agency. Access is currently by request while the checkout catalog is reconciled.
Frequently Asked Questions.
What dispatchers, fleet managers and owners ask before they put X3 Clean Truck in front of dispatch.
Isn’t this just a CARB tracker?
Which rules do you cover?
What is the Clean Truck Check, exactly?
Does it apply to out-of-state trucks?
How current are the rules?
What do I need to get started?
How does pricing work?
Is this compliance advice?
You Know the Load. Now Know the Truck Can Go.
Bring the truck and the route and X3 Clean Truck returns Allowed, Restricted or Not compliant — with the reason, the documents and the truck that can go instead.