Hear from Our Customers
You’re running trucks that fall under California’s Clean Truck Check requirements. That means twice-yearly emissions testing, CARB reporting, and staying ahead of registration holds that can shut you down overnight.
Missing a deadline or failing an inspection doesn’t just cost you the test fee. It costs you loads, revenue, and time scrambling to fix what should’ve been handled upfront.
When your testing is done by CARB certified technicians who know exactly what 2013 and newer heavy-duty diesel engines need to pass, you’re not guessing. You’re not hoping. You’re getting results that get submitted to the state correctly, keeping your DMV registration clear and your operation moving.
That’s what matters when you’re managing a fleet or running your own rig in one of the busiest logistics corridors in California. You need compliance handled so you can focus on what actually makes you money.
We specialize in Clean Truck Check for 2013 and newer trucks over 14,000 pounds. That’s it. We’re not trying to be everything to everyone—we’re focused on the trucks that fall under California’s strictest heavy-duty emissions regulations.
Our location in East Rancho Dominguez puts us right in the middle of the Port of LA and Long Beach logistics hub. We’re surrounded by distribution centers, freight companies, and independent operators who need reliable CARB compliance testing without the runaround.
We’re CARB certified, we understand the regulations, and we know what it takes to keep heavy-duty vehicles compliant in California. You’re not explaining your situation to someone who’s never dealt with a semi truck or a box truck fleet. You’re working with people who’ve been doing this in your backyard.
You bring your truck in or we come to you—depending on your fleet size and schedule. Either way, the process is straightforward.
We run a full CARB HD I/M emissions test using certified equipment. That includes checking your diesel emissions against California’s standards for your specific model year and engine type. If your truck is 2013 or newer and over 14,000 pounds, we know exactly what benchmarks it needs to hit.
Once testing is complete, results get submitted directly to CARB. You get documentation showing your truck passed, and your compliance record gets updated in the state system. No registration hold. No DMV block. No scrambling at renewal time.
If something doesn’t pass, we’ll tell you exactly what’s flagged and what needs attention before you retest. Most operators want to know upfront what they’re dealing with, and that’s what we give you—clear information so you can make the call on repairs or next steps.
The whole process takes about an hour per truck when everything’s running clean. You’re not sitting around all day, and you’re not wondering if it was done right.
Ready to get started?
Clean Truck Check isn’t just a smog test. It’s a state-mandated compliance program for heavy-duty trucks operating in California. If your truck is model year 2013 or newer and has a gross vehicle weight rating over 14,000 pounds, you’re required to test twice a year and report to CARB.
That means certified emissions testing, digital submission of results, and an annual program fee. Miss it, and the DMV puts a hold on your registration. You can’t renew. You can’t legally operate. And if you’re caught on the road out of compliance, you’re looking at penalties that go well beyond the cost of the test.
Here in East Rancho Dominguez, you’re operating in a high-enforcement zone. CARB uses roadside monitoring and license plate readers near the ports to flag high-emitting vehicles. If your truck gets flagged, you’ve got 30 days to submit to testing or face escalating fines.
Our service makes sure you’re ahead of that. You get CARB certified testing from technicians who understand heavy-duty diesel and alternative fuel systems. You get same-day results when possible. And you get documentation that proves compliance when the state comes asking.
This isn’t optional. It’s the cost of doing business in California with newer heavy-duty trucks. The question is whether you handle it proactively or reactively.
If your truck is model year 2013 or newer and weighs over 14,000 pounds gross vehicle weight rating, you need a Clean Truck Check—not a regular smog check. This is a separate program run by CARB specifically for heavy-duty vehicles.
Regular smog checks don’t meet the requirements. The testing equipment is different, the standards are different, and the reporting goes to a different system. Trying to use a standard smog check for a heavy-duty truck won’t satisfy CARB, and it won’t prevent a registration hold.
You’ll know you’re in the program if you’ve received a notice from CARB or if your DMV renewal paperwork mentions Clean Truck Check compliance. If you’re unsure, we can look up your vehicle and tell you exactly what’s required. Most operators in East Rancho Dominguez with newer box trucks, semi trucks, or heavy-duty diesel vehicles fall under this program.
Right now, trucks in the Clean Truck Check program need testing twice a year—every six months. CARB sets your testing windows based on your vehicle’s registration, and you’ll get notified when your next test is due.
Missing a window means your registration can get flagged, and the DMV may put a hold on your renewal until you’re compliant. That’s not something you want to deal with mid-season when you’re trying to move freight.
Some operators set reminders based on their registration month and test a few weeks early to avoid any last-minute issues. If you’re running multiple trucks, staggering your test dates can help you stay on top of compliance without everything hitting at once. We work with fleets to batch testing when it makes sense, so you’re not bringing trucks in one at a time every other week.
If your truck doesn’t pass, you’ll get a report showing exactly what failed and why. Most failures come down to emissions levels being too high, which usually points to maintenance issues—DPF problems, sensor faults, or engine performance that’s out of spec.
You’ll need to get the issue repaired and then retest. CARB gives you time to fix it, but your registration hold won’t lift until you pass. That means no renewal, no legal operation, and no loads until you’re compliant.
The key is addressing it fast. Most operators take the failed report to their mechanic, get the specific issue fixed, and come back for a retest within a week or two. We’ll tell you exactly what needs attention so you’re not guessing or paying for repairs that don’t solve the problem. Once the repair is done and you pass the retest, your compliance gets updated and the hold gets lifted.
We offer mobile testing for fleets, which means we bring the certified equipment and technicians to your location. If you’re running multiple trucks and want to minimize downtime, mobile service makes sense—you’re not sending drivers across town one at a time.
For single trucks or smaller operations, coming to our East Rancho Dominguez location works just fine. You’re in and out in about an hour, and you’re centrally located near the ports and major freight routes.
Mobile service scheduling depends on fleet size and location, but if you’re in the East Rancho Dominguez, Carson, Compton, or Long Beach area with multiple vehicles to test, we can usually coordinate a same-day or next-day visit. The testing process is the same either way—same equipment, same certification, same CARB reporting. It’s just a question of what’s more efficient for your operation.
Pricing depends on whether you’re testing a single truck or a fleet. Individual truck testing typically starts around $199. If you’re bringing in multiple vehicles, per-truck pricing drops—usually to around $149 each for 2-5 trucks, and lower for larger fleets.
There’s also a $31 annual CARB program fee that goes directly to the state, separate from the testing cost. That’s not something we control—it’s part of the Clean Truck Check program itself.
What you’re paying for is CARB certified testing, proper emissions analysis for heavy-duty diesel or alternative fuel engines, and digital submission of results that keeps your registration clear. When you factor in what a registration hold costs you in lost loads and downtime, the test fee is a small price to pay for staying compliant. We’re upfront about pricing, and we’ll give you a fleet quote if you’re managing multiple vehicles.
Appointments are recommended, especially if you’re coming during peak hours or need same-day service. We can usually fit you in quickly, but calling ahead means you’re not waiting around if we’re in the middle of testing another fleet.
If you’re scheduling mobile service for multiple trucks, we’ll coordinate a time that works for your operation—early morning, mid-day, or late afternoon depending on when your trucks are available and not out on runs.
Walk-ins are possible if we have availability, but you’re taking a chance on wait time. Most operators prefer to schedule so they know exactly when to bring the truck in and can plan their day around it. If you’re up against a compliance deadline, let us know—we’ll do what we can to get you tested fast so you’re not dealing with a registration hold.
Local Resources
Useful Links
Other Services we provide in East Rancho Dominguez
