Mobile Clean Truck Check & CARB Compliance
OBD-II inspections only • We come to you!
Based in Valencia, serving Santa Clarita & nearby. We specialize in OBD-II testing for Diesel 2013+ and Alt-Fuel 2018+ trucks, buses, and RVs. Fast, licensed, mobile service—no shop lines, no downtime. For non-OBD vehicles (Diesel 2012 & older, Alt-Fuel 2017 & older), opacity/visual testing is required.
At Smog To Go, we bring professional, hassle-free smog testing directly to your location. Whether you’re a fleet operator, independent trucker, or managing alternative fuel vehicles, our mobile Clean Truck Check and CARB compliance inspections are designed to save you time and money. Based in Valencia and proudly serving Santa Clarita and the surrounding areas, we specialize in OBD-II testing for Diesel 2013+ and Alt-Fuel 2018+ engines, ensuring your vehicles stay on the road and in full compliance with California regulations.
What sets us apart? We beat any advertised price in California—or your smog is free. That’s our guarantee. No more wasting hours in line or rearranging your schedule to meet emissions deadlines. Our licensed technicians come to you—whether you’re at a job site, warehouse, truck yard, or even your home—fully equipped to perform Clean Truck Check OBD-II compliance tests on the spot. If you call about opacity today, we’ll place you on the priority list and can coordinate a trusted partner for the opacity portion while we complete your OBD-II.
As California’s emissions laws tighten, staying compliant isn’t just good for the environment—it’s critical for your business. That’s why Smog To Go makes it easy, fast, and affordable. We’re committed to keeping your trucks moving and your operations CARB-compliant, all without the downtime or inflated service fees. Current eligibility (per CARB): Diesel 2013+ and Alt-Fuel 2018+ = OBD-II test; Diesel 2012 & older and Alt-Fuel 2017 & older = non-OBD opacity/visual.
Book your test now and experience the convenience of mobile smog checks done right. Whether you’re managing a single vehicle or an entire fleet, Smog To Go is your trusted partner in emissions compliance. We’re fast, reliable, and always come to you. Ask to be added to the Opacity Testing Priority List if your engines are non-OBD (Diesel ≤2012 or Alt-Fuel ≤2017).
Let us take the smog check stress off your plate—because when it comes to mobile emissions testing, Smog To Go is the way to go.
Price-Beat Guarantee: We’ll beat any current publicly advertised CA price for the same OBD-II service—or your smog is free.*
Our Services
CARB Clean Truck Check (CTC)
OBD-II inspection for commercial diesel engines 2013 and newer (typically over 14,000 lbs GVWR)
Alternative Fuel Vehicle Inspection
OBD-II inspection for CNG / LPG (propane) / hybrid commercial vehicles 2018 and newer
RV, Bus & Heavy-Duty Vehicle Testing
OBD-II inspection for motorhomes, school buses, shuttles, and large diesel vehicles that meet the OBD-II cutoff (Diesel 2013+)
Fleet
Discount
Available for multi-vehicle visits (same time & location) — see Pricing below for tiers and details.
Loyalty & Referral Rewards
Repeat customers get $10 off every visit, and earn $20 credit for each new customer they refer.
(Credits apply to OBD-II services and can be used on your next appointment.)
Service Area & How it Works
How It Works
- Check eligibility — Diesel 2013+ or Alt-Fuel 2018+ with OBD-II.
- Get your price — We confirm zone-based pricing by address or ZIP.
- We come to you — On-site mobile testing at your location.
- Results — Pass and receive documentation; if not, free retest within 30 days
Areas We Serve
Valencia, Santa Clarita, Stevenson Ranch, Castaic, Saugus, Canyon Country, Newhall, Palmdale, Lancaster, and surrounding regions.
Prices
Highlights
- OBD-II Clean Truck Check for Diesel 2013+ and Alt-Fuel 2018+ (CNG/LPG/Hybrid with OBD-II)
- Mobile on-site: home, yard, depot, or job site
- Licensed and CARB compliant; typical visit 30–60 minutes
Fleet Discount
Same time & location — universal for all services:
1 vehicle – $10 off • 3–6 vehicles – $20 off each • 6+ vehicles – $30 off each
Free Retest
One retest within 30 days for the same vehicle (within 10 miles of Valencia; discounted retest available outside area).
Price-Match Guarantee short terms
We match or beat any publicly advertised California price for the same OBD-II Clean Truck Check (same vehicle type/year; mobile vs. shop comparable; ad must be current and verifiable). If we can’t match or beat it, your test is free.
Pricing (from Valencia 91354)
Transparent pricing — mileage is measured from Valencia 91354.
Base rate (per vehicle). Apply universal discounts: 1 vehicle – $10 • 3–6 vehicles – $20 each • 6+ vehicles – $30 each.
Base rate (per vehicle). Apply universal discounts as above.
Base rate (per vehicle). Apply universal discounts as above.
Universal discounts apply to quoted base.
Santa Clarita, Valencia, Castaic, Canyon Country, Palmdale, Lancaster, San Fernando Valley
We handle CARB CTC reporting and VIN enrollment support.
Book a Test
Submitting this form is a request only; we’ll confirm by call or text with your final price before scheduling
Terms & Conditions
A non-refundable $30 deposit will be charged at the time of booking.
*Publicly advertised price must be current, verifiable at time of booking, and for comparable OBD-II clean-truck service (same vehicle class/year and mobile vs shop comparable). If we cannot beat the verified price, your test fee is waived.