Don’t let a DMV hold ruin your day. Certified HD/IM – Opacity Testing for Class 6-8 Trucks & RVs. Since 2020, we’ve performed over 3,900 tests on trucks & RVs (HD/IM & PSIP)
Call NOW to schedule your test at our shop or your location.
The Fast & Easy Way to Pass Your “Clean Truck Check” in Sacramento.
1-916-473-7393
Get directions to our shop. (via Google Maps)
Address: 4522 Parker Ave #200, McClellan Park, CA 95652
Or tap the button below to contact us via a short form.
Need multiple vehicles tested at once? Give us a call!
Over 3,900 tests completed on diesel trucks & RVs
CARB Certified Testers & Equipment for HD/IM & Opacity tests
COMPARE YOUR CTC OPTIONS
AT OUR SHOP |
AT YOUR LOCATION (Mobile) |
|
Price: |
$115 Flat Rate |
Starts at $150 |
Ease Level: |
Medium: You drive to us |
High: We drive to you & multiple trucks can be tested. |
Downtime: |
~1 Hour (Travel + Test) |
Minimal (test duration only) |
Best For: |
Owner-Operators / RVs |
Fleets / Busy Yards |
“They were super helpful for getting me an opacity test needed for my registration. They charged me half of what another shop was trying to charge. They seemed super nice and honest and genuinely helped me a ton!”
Carrievia Google Reviews
We're here to help.
Not sure if you need a test?
If your diesel vehicle is over 14,000 GVWR and operates in California, the answer is likely YES. Ignoring this leads to DMV registration blocks. We handle the CTC testing paperwork and upload your results to CARB instantly.
Call if you have questions. 1-916-473-7393
Frequently Asked Questions
Q: How do I prepare my truck for testing?
A: To avoid a failed test (and a re-test fee), please check these 4 items before testing/we arrive:
- Check for Smoke: If you see thick smoke, fix the issue first—it will fail.
- Warm It Up: Run the engine for 15 minutes to clear exhaust moisture.
- Pay the Fee: Log in to CARB (CTC-VIS) and ensure your $31 annual fee is paid.
- Find the Tag: Ensure your Engine Family Name label (ECL) and VIN are clean and readable.
Q: Which vehicles are required to get the Clean Truck Check?
A: Almost all diesel and alternative fuel vehicles with a Gross Vehicle Weight Rating (GVWR) over 14,000 lbs operating in California must participate. This includes commercial trucks, buses, and motorhomes (RVs). If you operate in California, even if registered out of state, you likely need a certificate.
Q: How do I clear my DMV registration hold?
A: The hold is usually triggered because a CARB hasn’t received a test for your vehicle.
- You pay the annual compliance fee to CARB (if unpaid).
- We perform the opacity test (OBD or tailpipe).
- We upload your results to the CARB CTC-VIS database instantly.
Once these steps are done, the hold typically lifts within 24-48 hours.
Q: Can you come to my location, yard or job site?
A: Yes! Our Mobile Service is designed to save you downtime. We come to your location in the Greater Sacramento area. This is ideal for fleets with lots of vehicles or vehicles that are currently non-operational/unregistered and cannot legally drive to a shop.
**Travel charges based on time/distance apply.
Q: How long does the test take?
A: The actual testing process is fast—typically 15 to 20 minutes per truck. For mobile visits, we just need a safe, flat area to park near the vehicle. Be sure your vehicle is also warmed up.
Q: What is the difference between this and a standard Smog Check?
A: Standard smog checks are for vehicles under 14,000 lbs (like pickups and cars). The Clean Truck Check (HD I/M) is specifically for heavy-duty diesel vehicles. We are credentialed specifically for the heavy-duty program.
Q: Do you test Motorhomes and RVs?
A: Yes! Many RV owners are surprised to learn they fall under these new regulations. If your diesel pusher is over 14,000 lbs GVWR, we can get you certified and back on the road for your trip.
Q: What happens if my truck/RV fails the opacity test?
A: If you fail, the DMV hold will remain. We will provide a report/explanation about why it failed (usually a Check Engine Light, visible smoke, or high particulate matter). You will need to repair the issue and schedule a re-test.
Want to Pass on the First Try? Do These 4 Things.
Don’t waste money on a re-test. Follow this simple checklist before we arrive to ensure your truck is ready for certification.
1. Registered & Fee Paid
Be sure your vehicle is registered with CARB. Also, make sure you’ve logged in to your CTC-VIS account, and the $31.18 annual compliance fee is paid.
2. Look for Visible Smoke
If your truck is blowing smoke, do not schedule a test yet. It will fail. Have a mechanic fix the issue first to save yourself time & the cost of a failed test.
3. Warm Up the Engine
A cold engine can trigger a false failure. Please run the vehicle for at least 15 minutes before we arrive to clear moisture and get the catalyst hot.
4. Locate the Engine Tag
We need to photograph your VIN & Engine Family Name (ECL label). Are these labels readable? (Commonly found on the valve cover or door jamb).
We've got you!
Fast, Accurate and Certified.
Experienced Clean Truck Check testing for the Sacramento area (3,900+ tests completed in the last 5 years).
Have a large fleet? Call for bulk pricing.
Not a good time to call? No problem. Fill out the form, and we’ll get back to you ASAP.
Check Availability & Pricing
Contact Us:
Phone: 1-916-473-7393 or email: info@des.direct.com
Address: 4522 Parker Ave #200, McClellan Park, CA 95652