Do California Agricultural Vehicles Need Clean Truck Check Testing? Yes—Here’s What You Need to Know
agricultural clean truck check
If you operate agricultural trucks in California, it’s not just smart to stay compliant with emissions testing—it’s the law. Under California’s Clean Truck Check (Heavy-Duty Inspection and Maintenance Program), most agricultural vehicles are required to undergo annual emissions testing, even if they only run seasonally or locally.
At NorCal CARB Mobile, we make it easy by bringing certified Clean Truck Check testing right to your ranch, farm, or facility. No hauling. No downtime. Just fast, compliant testing—on your schedule.
🌾 What Is the Clean Truck Check Program?
California’s Clean Truck Check is a statewide regulation requiring emissions testing for most diesel and alternative-fuel heavy-duty vehicles with a GVWR over 14,000 lbs. That includes many agricultural trucks, especially:
Grain haulers
Livestock carriers
Flatbeds and stake trucks used for crop transport
Truck-tractor and trailer combinations hauling to the first point of processing
Even if your vehicle is only used seasonally or stays on rural roads, you still may be required to test annually.
🧑🌾 What Is an Agricultural Vehicle—And Does It Need Testing?
An agricultural vehicle is defined by the California Air Resources Board (CARB) as any vehicle:
Owned or operated by a farming business, and
Used exclusively for agricultural operations, such as transporting farm products to the first point of processing
🛑 Personal-use vehicles, general transport vehicles, and those not directly supporting farming do not qualify for agricultural exemption status and still need testing if they meet Clean Truck Check criteria.
✔️ If your ag vehicle operates in California and weighs over 14,000 lbs, chances are it needs to be tested annually.
🧪 How Often Do Agricultural Vehicles Need Testing?
Only once per year—and NorCal CARB Mobile makes it simple:
Testing can be done up to 90 days before your deadline
We test on-site at your farm or facility
We issue test results, documentation, and submit to CARB directly
📆 Book early to ensure compliance before peak season.
🛻 Why Choose NorCal CARB Mobile?
We’re a CARB-credentialed Clean Truck Check testing provider based in Northern California and focused on serving:
Farmers
Ranchers
Ag transport companies
Packing houses and processors
With mobile service, we come to you—whether you’re in Yuba City, Modesto, Fresno, the Central Valley, or anywhere in between.
✅ No trips to a test station
✅ No waiting in line
✅ No down days during harvest
📞 How to Schedule Your Agricultural Vehicle Emissions Test
Getting started is easy. You can:
Visit NorCalCARBMobile.com to request a test
💡 Need Help Determining If You’re Covered?
If you're unsure whether your ag vehicle qualifies or needs to be tested, we’re here to help. Our team is trained to interpret CARB regulations and ensure you’re in full compliance.
📧 Email us at office@norcalcarbmobile.com or call 916.890.4427 for a quick assessment.
🌱 Stay Compliant, Stay Productive.
The Clean Truck Check isn’t going away—but non-compliance penalties can be avoided. Let NorCal CARB Mobile handle your emissions testing while you focus on growing California’s future.
Keeping California Compliant: Why NorCalCARBMobile.com Is the Go-To for On-Site Clean Truck Check Testing
norcal clean truck check mobile
If you operate a diesel-powered motorhome, box truck, day cab, sleeper, or manage a full fleet of commercial vehicles in California, you're now responsible for meeting new compliance standards under the CARB Clean Truck Check (CTC) program.
But here’s the good news: NorCal CARB Mobile takes the stress out of Clean Truck Check compliance by bringing the test to you — wherever you are in Northern California.
Let’s break down how we help keep your vehicles compliant, your business moving, and your registrations clear of DMV holds.
✅ What is the Clean Truck Check?
The California Air Resources Board (CARB) launched the Clean Truck Check (formerly HD I/M) to reduce diesel emissions from medium- and heavy-duty vehicles with a GVWR over 14,000 lbs.
This includes:
Diesel trucks (commercial and personal use)
Motorhomes over 14K lbs
Box trucks
Day cabs and long-haul sleepers
Large work vans and RVs
Compliance requires two things:
Annual emissions testing (either OBD or opacity/visual)
Annual registration in the CTC-VIS portal, with a per-vehicle fee
🚐 We Come to You — Mobile Clean Truck Check Testing
Whether you’re parked at a construction site, storing your RV for the season, or managing a busy fleet yard, NorCal CARB Mobile sends a credentialed mobile technician directly to you.
Our team handles:
On-site OBD scans for 2013+ diesel or 2018+ alt-fuel vehicles
Smoke opacity + visual inspections for older models
Visual-only checks for eligible non-OBD alternative fuel vehicles
Our services are ideal for:
RV & motorhome owners
Small businesses with a handful of trucks
Full commercial fleets
Government and school agencies
Independent owner-operators
🧾 Full-Service CTC-VIS Registration & Certificate Uploads
The CTC-VIS system isn’t exactly user-friendly, and that's where we shine.
Our full-service model includes:
Registering your vehicle(s) in the CARB CTC-VIS portal
Uploading all test results and passing certificates
Tracking compliance deadlines and DMV flags
Managing payment of the CARB annual fee
Ensuring your Clean Truck Check certificate is ready before you renew registration
No more browser errors, portal timeouts, or surprise DMV holds.
📍 Where We Operate
NorCal CARB Mobile serves Sacramento County and surrounding regions including:
Stockton
Modesto
Fairfield
Roseville
Yuba City
Chico
Bay Area (select availability)
And more across Santa Cruz, Fresno, San Diego and Orange County California
We also offer weekend and evening appointments for RV parks, fleet lots, and trucking companies who can’t afford downtime.
💬 Why Customers Choose NorCal CARB Mobile
Here’s what sets us apart:
Fully credentialed CARB mobile tester
Transparent pricing with no hidden fees
Quick turnaround on compliance certificates
Flexible appointments at your location
Friendly support from people who understand the rules
Ready to Stay Compliant and On the Road?
Whether you’ve got one motorhome or a fleet of 50, NorCal CARB Mobile makes it easy to stay compliant with California’s Clean Truck Check.
Book your test today by calling (916) 890‑4427 or emailing office@norcalcarbmobile.com.
Let us handle the testing — so you can stay focused on the road ahead.
ATTENTION CALIFORNIA DIESEL TRUCK OWNERS:
clean truck check Bay Area and San Diego.
Don’t Let Clean Truck Check Deadlines Shut Down Your Fleet
NorCal CARB Mobile is your fast, flexible, and fully certified mobile partner for Clean Truck Check (HD I/M) compliance — now required across California for diesel trucks over 14,000 lbs.
📍 Based in Sacramento. Serving All of California.
We’re not just another shop. We’re mobile, responsive, and built for your schedule. Whether you’re operating in Sacramento County, rolling through the Bay Area, or running routes in San Diego or Orange County, we bring compliance to your yard, jobsite, or fleet base. No downtime. No drama.
⚙️ What Is the Clean Truck Check?
California’s new HD I/M regulation (aka the Clean Truck Check) requires diesel truck owners — including out-of-state vehicles — to pass periodic emissions compliance testing. This includes:
OBD testing for vehicles equipped with On-Board Diagnostics
Emissions control equipment verification
Digital upload of your results directly to CARB
If you’re not testing, you’re at risk of fines, citations, or losing road access.
💥 Avoid the Waitlist. Book Your Mobile Test Today.
✅ Certified HD I/M Tester
✅ First Retest is FREE if You Don’t Pass
✅ No Trip Fee Within 125 Miles of Sacramento (or in SD/OC Areas)
✅ Early Mornings, Evenings & Weekend Appointments
✅ Results Uploaded Directly to CARB
🔍 Service Areas We Cover:
🟢 Sacramento County
Sacramento, Elk Grove, Citrus Heights, Rancho Cordova, Galt, Folsom, Antelope, Carmichael, Fair Oaks, Orangevale, North Highlands, Florin
🟢 Bay Area
Oakland, San Francisco, San Jose, Hayward, Fremont, Richmond, Vallejo, Concord, Antioch, Livermore, Union City, and more
🟢 San Diego County
Chula Vista, National City, El Cajon, Escondido, Oceanside, Carlsbad, Santee, Poway, and surrounding areas
🟢 Orange County
Anaheim, Santa Ana, Irvine, Fullerton, Garden Grove, Huntington Beach, Costa Mesa, Westminster, Tustin
Service
Rate
One-Time Diesel Test
$100
Small Fleet (3–10 trucks)
$65/test
Large Fleet (11+ trucks)
$50/test
Emergency / Weekend Add-on
+ $20
Travel Fee (125+ mi from 95820)*
+ $75 (Waived for SD/OC or 5+ trucks)
*First retest is free if you fail on the first attempt.
Book Today. Be Done Tomorrow.
You didn’t get into trucking to chase paperwork. We did.
Let NorCal CARB Mobile handle your Clean Truck Check testing — fast, mobile, and fully compliant.
📞 916-890-4427
📧 office@norcalcarbmobile.com
Mobile HD I/M Testing in Sacramento County — Early & Late Service That Works Around Your Schedule
Clean truck check sacramento
For truck owners and fleet managers in Sacramento County, staying CARB-compliant is non-negotiable—but pulling vehicles off the road for testing eats into your bottom line. That’s why NorCal CARB Mobile, based right on 7th Avenue in Sacramento, brings certified HD I/M testing and Clean Truck Check services directly to your location—early in the morning, late at night, or whenever works best for you.
norcalcarbmobile.com clean truck check to your location.
Why Sacramento County Truckers Trust NorCal CARB Mobile
We know your truck only makes money when it’s on the road—not sitting in line at a test station.
That’s why our mobile team covers the entire Sacramento County region, offering convenient, on-site testing that works with your schedule—not against it. Whether you’re operating in:
Sacramento
Elk Grove
Rancho Cordova
Folsom
Galt
Citrus Heights
Or anywhere in between…
We’ll come to your yard, job site, or home and perform the required HD I/M emissions inspection and smoke opacity test on the spot.
What We Test
As part of the California Clean Truck Check (HD I/M program), we provide:
✅ Vehicle Emissions Control Equipment Inspection
✅ SAE J1667 Smoke Opacity Testing
✅ Visual checks of diesel particulate filters (DPFs)
✅ Inspection of Verified Diesel Emission Control Strategy (VDECS) labels
✅ Compliance test reports for DMV and CARB documentation
We’re CARB-certified, mobile, and equipped to handle both individual trucks and entire fleets with minimal disruption to your operations.
On Your Schedule — Not Ours
Early morning before dispatch? We’re there.
Late at night after the last drop? We’re still there.
Weekend availability for fleets? Absolutely.
We structure our testing windows to support your business model—because we’re from here too. Located in the heart of Sacramento on 7th Avenue, we proudly serve the county we call home.
What Sacramento Fleets Say About NorCal CARB Mobile
“They came to our site at 5:30 AM and had 6 trucks tested before our first dispatch left at 7. We’ll never use anyone else.”
— Local Freight Supervisor, South Sacramento
“Super professional, explained the Clean Truck Check steps, and saved us time and hassle. Worth every penny.”
— Owner-Operator, Elk Grove
Who Needs This Test?
If you operate any diesel, hybrid, or alternative fuel truck over 14,000 lbs GVWR in California, you’re required to meet HD I/M testing requirements. This includes:
Box trucks
Day cabs and sleeper cabs
Delivery vans
Construction fleet vehicles
Tow trucks
School and shuttle buses
And more
Whether you have one truck or fifty, NorCal CARB Mobile will help you stay on the road—legally and efficiently.
Book Your Sacramento County Clean Truck Check Today
Need same-day service? Early AM? After hours?
We’ve got you covered.
What Is the Clean Truck Check? California’s New HD I/M Program Explained
Clean Truck Check
California’s transportation regulations just got stricter — and if you operate diesel trucks over 14,000 pounds, you’re directly affected. The Clean Truck Check, also known as the Heavy-Duty Inspection and Maintenance (HD I/M) Program, is the California Air Resources Board’s (CARB) newest compliance program aimed at reducing pollution from heavy-duty vehicles.
In this post, we’ll break down everything fleet managers, owner-operators, and businesses need to know — and how NorCal CARB Mobile can help you stay compliant with convenient, mobile HD I/M testing services.
What Is the Clean Truck Check?
The Clean Truck Check is CARB’s statewide emissions inspection program for non-gasoline heavy-duty vehicles with a GVWR over 14,000 pounds. Think of it as California’s version of a smog check — but for big rigs, box trucks, buses, and other diesel-powered commercial vehicles.
It ensures that heavy-duty trucks operating in California are properly maintained and not releasing excessive emissions, particularly particulate matter (PM) and NOx (nitrogen oxides) — two major contributors to air pollution.
Who Must Comply?
The program applies to:
Diesel trucks over 14,000 lbs GVWR
Alternative fuel and hybrid trucks (non-gasoline)
California-registered and out-of-state trucks operating in California
Single owner-operators and fleets alike
Whether your vehicle is based in Sacramento, San Jose, or out of state, if it’s working on California roads, it’s subject to HD I/M testing requirements.
What Does the Program Require?
There are three major components of Clean Truck Check compliance:
Vehicle Emissions Control Equipment Inspection
Testers verify that emission control systems (like diesel particulate filters and SCR systems) are properly installed and functioning.
SAE J1667 Smoke Opacity Test
This test measures the amount of visible smoke a vehicle emits — an indicator of poor combustion or equipment failure.
OBD Testing (for newer vehicles)
Vehicles with onboard diagnostic systems must pass periodic digital scans.
When and How Often Do You Need to Test?
Testing frequency depends on vehicle model year and registration status. Most vehicles will need semi-annual testing, with additional roadside or surprise inspections possible.
Avoiding or delaying testing can lead to fines, registration blocks, or DMV holds.
Why Mobile HD I/M Testing Makes Sense
At NorCal CARB Mobile, we take the hassle out of compliance. No waiting in line at a test facility or taking vehicles out of service. Our mobile CARB-certified testers come to your location—whether it’s a fleet yard, construction site, or your driveway.
We serve:
Sacramento County
San Francisco Bay Area
San Diego County
Orange County
… and everywhere in between!
What Makes NorCal CARB Mobile Different?
✅ On-site smoke opacity and emissions control inspections
✅ CARB-certified technicians
✅ Fast scheduling and digital compliance reporting
✅ Transparent pricing with no surprise fees
✅ Fleet testing and single vehicle testing available
Ready to Schedule Your Clean Truck Check?
Don’t wait until you’re out of compliance. Call NorCal CARB Mobile or book online to schedule your mobile HD I/M test today.
📍 Serving California diesel truck operators statewide
NorCal CARB Mobile — Helping California fleets stay compliant, one truck at a time.