Central Valley Clean Truck Check — Mobile Diesel Smog & CARB Compliance

Call us at (209) 921-6347 or WhatsApp us at 209-850-1083 ✅ Same Day Service | ✅ We Come To You | ✅ CARB Certified

Need a clean truck check in the Central Valley? Clean Truck Check LLC provides CARB-certified mobile diesel smog testing across the entire Central Valley — from Stockton to Turlock, Modesto to Merced. We come directly to your yard, warehouse, or truck stop — no need to drive anywhere.

📍 Serving Turlock, Modesto, Manteca, Lathrop, Stockton, Tracy, Merced, Fresno, and all Central Valley cities

Why Central Valley Truck Owners Choose Clean Truck Check LLC

The Central Valley is California’s backbone for agriculture, logistics, and trucking — with Highway 99 and I-5 running through the heart of the region. With thousands of diesel trucks operating daily, CARB compliance is strictly enforced.

One failed CARB inspection can mean a DMV registration hold and trucks pulled off the road — costing thousands in lost revenue.

Here’s why Central Valley truck owners trust us:

• ✅ We Come To You — No downtime, no driving. We test at your location.
• ✅ CARB Credentialed Testers — Fully certified and approved by California Air Resources Board
• ✅ Same Day Service Available — Call in the morning, get tested the same day
• ✅ Instant CARB Reporting — Results uploaded to CTC-VIS system immediately after test
• ✅ Fleet Discounts — Testing 3 or more trucks? Ask about our fleet pricing
• ✅ OBD + Opacity Testing — We test 2013 and newer (OBD) and older diesel trucks
• ✅ Reminder Service — We remind you via WhatsApp before your next test is due

Our Services in the Central Valley

Mobile Clean Truck Check — Central Valley

All diesel vehicles over 14,000 lbs GVWR operating in California must pass a CARB Clean Truck Check. We perform this test at your location across the Central Valley — fast, certified, and stress-free.

Diesel Smog Check — Central Valley

We perform HD/IM diesel smog checks for trucks, buses, dump trucks, box trucks, RVs, motorhomes, and party buses throughout the Central Valley. Our equipment meets all SAE J1667 standards.

OBD Emissions Testing (2013 and Newer)

For 2013 model year and newer diesel trucks, we perform On-Board Diagnostics (OBD) testing — the fastest and most accurate method for CARB compliance.

CARB Compliance Assistance

Not sure if your truck is compliant? We check your vehicle’s CARB status, help with registration, and make sure your DMV record is updated after passing.

Fleet Testing — Central Valley Wide

On-site fleet testing for trucking companies, agricultural businesses, warehouses, and construction firms throughout the Central Valley. The more trucks, the bigger the discount.

Cities We Serve in the Central Valley

We have technicians based throughout the Central Valley covering these areas:

San Joaquin County:

• Stockton | Manteca | Lathrop | Tracy | Ripon | Escalon | French Camp

Stanislaus County:

• Modesto | Turlock | Ceres | Riverbank | Oakdale | Patterson | Newman | Hughson

Merced County:

• Merced | Atwater | Livingston | Los Banos | Hilmar | Delhi

Fresno County:

• Fresno | Clovis | Madera | Selma | Kingsburg | Chowchilla

How It Works — 3 Simple Steps

Step 1: Call or WhatsApp us at (209) 921-6347 — tell us your city, location, and number of trucks

Step 2: We send the nearest technician to your location at your scheduled time

Step 3: Test done on-site, results uploaded to CARB CTC-VIS instantly — compliance certificate same day

Pricing

Call (209) 921-6347 for exact quote

Frequently Asked Questions — Central Valley Clean Truck Check

Q: What is a Clean Truck Check and do I need it in the Central Valley?

A: Yes. If your diesel truck is over 14,000 lbs GVWR and operates in California, you are required by CARB to pass a Clean Truck Check. Non-compliance means DMV registration hold and fines up to $10,000 per day.

Q: How often does my truck need to be tested?

A: Most trucks need testing every 6 months. 2013 and newer trucks with OBD systems may qualify for annual testing. We will tell you your exact schedule when you call.

Q: Do you cover the entire Central Valley?

A: Yes — we have technicians covering San Joaquin County, Stanislaus County, Merced County, and Fresno County. Call us with your city and we will confirm availability.

Q: Do you come to my location?

A: Yes — fully mobile service. We come to your yard, warehouse, truck stop, or any location. You do not need to bring your truck anywhere.

Q: What happens if my truck fails the test?

A: We give you a detailed report explaining exactly what needs to be fixed. Once your truck is repaired, bring it to our location and we will retest it for free.

Q: How long does the test take?

A: Single truck takes approximately 20–30 minutes. Fleet testing is faster per truck when done together.

Q: What vehicles do you test?

A: All diesel and alternative fuel vehicles over 14,000 lbs including: semi trucks, box trucks, dump trucks, buses, RVs, motorhomes, tow trucks, flatbeds, and party buses.

Q: Is Clean Truck Check LLC CARB certified?

A: Yes. All our testers are CARB credentialed and our equipment meets all California Air Resources Board requirements. Results reported directly to CARB’s CTC-VIS system.

Q: How do I book?

A: Call us at (209) 921-6347 or WhatsApp us at 209-850-1083, or  Book Online: Click Here to Book.. Same day appointments often available.

Dedicated City Pages

We also have dedicated pages for specific cities — click your city for more details:

• Clean Truck Check Turlock
• Clean Truck Check Modesto
• Clean Truck Check Manteca
• Fresno Clean Truck Check

Don’t Risk a DMV Registration Hold

CARB non-compliance means:

• ❌ DMV blocks your registration renewal
• ❌ Fines up to $10,000 per day
• ❌ Trucks pulled off road at Hwy 99 and I-5 checkpoints
• ❌ Agricultural facilities and warehouses deny entry to non-compliant trucks

One call solves all of this.

Book Your Central Valley Clean Truck Check Today

Call us at (209) 921-6347 or WhatsApp us at 209-850-1083 📧 Email: info@cleantruckcheckllc.com 🌐 Book Online: Click Here to Book

Serving the entire Central Valley — Stockton, Manteca, Lathrop, Tracy, Modesto, Turlock, Ceres, Merced, Fresno, and all surrounding areas.

Clean Truck Check LLC — CARB Credentialed Mobile Diesel Smog Check | Central Valley, CA | (209) 921-6347