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You’re already dealing with tight delivery windows, driver schedules, and customer expectations. The last thing you need is another truck sitting idle because of CARB diesel compliance requirements.
When your registration gets flagged, that vehicle can’t legally operate on California roads. That’s lost revenue every single day. For most operators in Norco, that’s $500+ per truck per day in missed work.
We bring the testing equipment to wherever your truck is parked. You get results uploaded to the CARB database within 24-48 hours. Your DMV hold clears. Your truck gets back to work. No appointment juggling, no waiting in line, no multi-day delays that eat into your margins.
This applies specifically to diesel and alternative fuel trucks from model year 2013 or newer with a GVWR over 14,000 pounds. If your fleet operates in Norco’s construction, distribution, or transportation sectors, you’re required to test twice yearly starting this year, increasing to four times annually by 2027.
We specialize in CARB truck regulations for heavy-duty fleets operating throughout Riverside County. We’re state-certified smoke opacity and emissions control system testers, which means our results are valid for CARB reporting.
Norco’s economy runs on industries that depend on heavy-duty vehicles. Construction companies, material distributors, landscaping operations, and freight haulers all face the same compliance requirements. We’ve been helping fleet operators and owner-operators in this area navigate clean truck check requirements since these regulations started tightening.
We’re not a general smog shop trying to figure out heavy-duty compliance. This is what we do. Our testers are CARB-credentialed, our equipment is certified for OBD testing on 2013 and newer diesel engines, and we’ve successfully helped clients resolve compliance issues directly with CARB when problems arise.
First, you tell us where your truck is located in Norco or the surrounding area. We schedule a time that works around your operations, not the other way around.
Our mobile unit arrives with all CARB-certified testing equipment. For 2013 and newer trucks, we perform OBD testing that connects directly to your vehicle’s onboard diagnostics system. This checks emission control systems and ensures everything meets California CARB compliant standards. The actual test takes minutes, not hours.
Results get uploaded to the CARB database immediately after testing. You’ll know right away if your truck passed. If there’s an issue, we explain exactly what needs attention before retesting.
Once you pass, your clean truck check certificate processes through the system. The DMV hold on your registration clears within 24-48 hours. You’ll also need to ensure your annual $30 compliance fee is paid per vehicle, which is separate from testing but required for full compliance.
We can test multiple trucks in one visit if you’re running a fleet. That means less disruption across your entire operation and faster turnaround for getting every vehicle back to compliant status.
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CARB compliance for heavy-duty vehicles in California isn’t optional. If your truck operates on public roads in Norco, you’re required to register with the Clean Truck Check program, submit to emissions testing, and pay annual compliance fees.
Right now, testing is required twice per year. By October 2027, that increases to four times annually for OBD-equipped vehicles. Miss a test or fail to register, and the DMV freezes your registration. That truck can’t legally operate until compliance is restored.
The penalties for non-compliance start at $1,000 but can reach $10,000 per vehicle per day. For a fleet of five trucks running non-compliant for even a week, you’re looking at potential fines exceeding $300,000. That’s not a scare tactic. That’s the actual penalty structure.
Norco has 253 active trucking carriers and thousands of heavy-duty vehicles supporting construction, retail, manufacturing, and transportation industries. Every single one operating over 14,000 lbs GVWR needs to stay current with CARB emissions testing. The regulations aren’t going away, and enforcement is increasing.
Our mobile service removes the logistical headache. You don’t lose a day of work hauling a truck to a testing facility. You don’t pay for downtime while waiting for results. We come to your business, your lot, or wherever your truck is parked in the Norco area and handle everything onsite.
This service is specifically for heavy-duty trucks that are model year 2013 or newer and have a gross vehicle weight rating over 14,000 pounds. That includes semi trucks, heavy-duty pickups used commercially, box trucks, and other diesel or alternative fuel vehicles that meet those criteria.
If your truck is older than 2013, different testing requirements apply and the process is different. If it’s under 14,000 lbs GVWR, it falls under standard smog check regulations, not the Clean Truck Check program.
The 2013 cutoff matters because that’s when OBD systems became standard on heavy-duty diesel engines. Our testing equipment connects to those systems to verify emission controls are working properly. Older trucks require smoke opacity testing, which is a separate process with different equipment and standards.
Once we complete your CARB emissions testing and upload passing results to the CARB database, the DMV hold typically clears within 24-48 hours. That’s the processing time on CARB’s end, not ours.
You’ll be able to verify the hold is lifted by checking your vehicle registration status through the DMV. Once it’s clear, you can renew your registration and get back to operating legally on California roads.
The key is scheduling testing before your registration expires. If you wait until you’re already flagged and can’t operate, you’re losing money every day that truck sits. We can usually schedule mobile testing within a few days of your call, but during peak compliance periods, it’s smart to book ahead.
If your truck doesn’t pass, we’ll tell you exactly what triggered the failure. Most issues relate to emission control system malfunctions that show up through the OBD system. That could be a faulty sensor, a DPF issue, or another component that’s not performing to spec.
You’ll need to get the problem repaired before retesting. We can point you toward what needs attention, but the actual repairs need to happen at a qualified diesel mechanic or truck repair facility.
Once repairs are complete, we come back out and retest. There’s a retest fee, but it’s significantly less than the initial test. The goal is to get you compliant as quickly as possible so your truck can get back to work and you avoid ongoing DMV registration issues or potential penalties from operating non-compliant.
Mobile testing costs more than dropping your truck at a facility, but you need to factor in what your time and downtime are worth. Taking a truck off your job site or route to drive it to a testing center, wait for results, and drive it back can easily cost you a full day of work.
For most operators in Norco running construction, delivery, or hauling operations, that’s $500 to $1,000+ in lost revenue per truck. Our mobile fee covers the convenience of us coming to you, testing onsite, and uploading results immediately so you lose zero operational time.
In-person testing at facilities runs around $80 to $180 depending on the test type. Mobile services typically start around $135 per truck plus a service call fee. When you’re running multiple trucks, we can test several in one visit, which spreads that mobile fee across your fleet and makes the per-truck cost more reasonable.
Make sure your truck is accessible and parked where our mobile unit can reach it safely. We need to connect our testing equipment to your vehicle’s OBD port, so the truck needs to be in a location where we can work without blocking traffic or operations.
Have your vehicle information ready, including VIN, registration, and any previous CARB compliance documentation. If you’re not already registered with the Clean Truck Check program, we can help you through that process, but it’s easier if you’ve already set up your account.
The truck should be in normal operating condition. We’re testing emissions systems, not diagnosing mechanical problems. If your check engine light is on or you know there’s an existing issue with emission controls, get that addressed before scheduling testing. Otherwise, you’ll fail and need to pay for repairs and retesting anyway.
Right now, testing is required twice per year for heavy-duty trucks over 14,000 lbs GVWR operating in California. That started January 1, 2025, as part of the Clean Truck Check program.
By October 1, 2027, the requirement increases to four times per year for OBD-equipped vehicles. That’s every three months. The frequency is designed to ensure trucks maintain emission standards throughout their operational life, not just at initial inspection.
You’re also required to pay an annual $30 compliance fee per vehicle, separate from testing costs. Miss a test or let your compliance lapse, and the DMV will freeze your registration. That means the truck can’t legally operate on public roads until you’re back in compliance. For fleets operating in Norco’s transportation and construction industries, staying on top of these deadlines isn’t optional. It’s the cost of doing business in California.
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