Clean Truck Check
Made Simple

Stay Compliant. Test Anywhere. No Hassle.
CARB-certified testing device available now – no shop visit required!


Step 1:

Get Certified
(Quick & Easy)

Becoming a Clean Truck Check tester is simple and requires no special ASE certification. With just six short training videos and an open-book, 20-question test, you can get certified and ready to start testing in under 2 hours.

Step 2:

Choose Your Testing Device

Get a CARB-approved, turn-key testing device that allows you to perform tests anywhere—no shop required. With flexible rental or purchase options and no annual update fees, OPUS Inspection makes emissions testing easy and affordable. You can also read and clear fault codes on the spot and access RAW PIDs data, giving you the ability to complete tests without delays and gain deeper diagnostic insight.

Step 3:

Unlock New Revenue & Grow Your Business

Turn your certification into a profitable opportunity by offering Clean Truck Check testing as a service. Perform on-site emissions tests, provide a much-needed solution for fleets, and earn recurring income in a growing market.

Step 1: Get Certified – Quick & Easy

Become a Certified Clean Truck Check Tester in Under 2 Hours

No ASE certification required – anyone can qualify! CARB’s Clean Truck Check program allows fleet owners and service providers to conduct emissions testing without needing specialized certifications.

This certification process is designed to be accessible and straightforward, ensuring that both fleet owners and service providers can quickly get up to speed. With minimal training, you’ll be able to perform tests efficiently, meet CARB compliance standards, and unlock new business opportunities. Whether you’re looking to streamline fleet operations or expand your service offerings, becoming a certified tester is a fast, easy way to stay ahead in the industry.

How It Works:

Getting certified is quick, straightforward, and accessible to anyone—whether you’re a fleet operator looking to manage compliance in-house or a mechanic aiming to expand your service offerings. CARB has designed the certification process to be efficient and easy to follow, ensuring that testers can quickly get up to speed. With no ASE certification required, this is an excellent opportunity to step into a growing industry with minimal barriers.

01

Watch 6 Short Training Videos

The training covers everything you need to know about Clean Truck Check procedures, taking about 1 hour and 50 minutes in total.

02

Take the Open-Book Exam

The test consists of 20 questions, and you can keep the training videos open in a separate tab to refer back to.

03

Get Your Certification Immediately

Once you pass, you’ll be ready to start testing vehicles right away!

Step 2: Get Your Testing Device

The Tool You Need to Start Testing Anywhere

A certified tester needs the right tools to perform Clean Truck Check emissions tests efficiently. OPUS Inspection offers a CARB-approved, turn-key testing device that allows you to conduct tests anywhere—no need to pull vehicles into a shop or specialized facility.

With CARB’s testing requirements increasing, having a reliable, on-site testing solution is more important than ever. Our device is simple to use, fully compliant, and designed for efficiency—allowing you to complete tests quickly and accurately while maximizing convenience for both fleet operators and service providers.

In addition to testing, the device gives you the ability to read and clear fault codes on the spot, so you can complete tests without delays or repeat visits. It also provides access to RAW PIDs data, giving you deeper diagnostic insight and more precise control over the testing process.

Whether you’re managing your own fleet or offering testing services, this tool ensures you stay ahead of regulations and industry demand.

The OPUS Advantage: Why Our Device Stands Out

Reliable. Certified. Hassle-Free. OPUS Inspection’s turn-key testing device is CARB-approved, easy to use, and built for efficiency—helping you perform Clean Truck Check tests anywhere, anytime, with no hidden fees.

Certified & Compliant

– Fully approved by CARB, ensuring you meet all regulatory requirements effortlessly.

Test Anywhere

– No need for a shop or facility—perform tests on-site, reducing downtime and increasing efficiency.

Fast & User-Friendly

– Designed for ease of use, with a streamlined process that lets you complete tests in minutes.

Advanced Diagnostics & Code Control

– Read and clear fault codes directly from the vehicle, allowing you to complete tests without delays. Access RAW PIDs data for deeper diagnostic insight and more accurate emissions testing.

No Hidden Fees

– Unlike other providers, OPUS Inspection offers a true turn-key solution with no annual or periodic update fees—just a simple, upfront cost.

Flexible Ownership Options

– Choose between an affordable rental plan ($149/month + tax) or a one-time purchase—whichever works best for your business.

The Right Tool for the Job—Test Anywhere, Anytime

Stay compliant and perform Clean Truck Check tests with ease using a CARB-certified, turn-key testing device—no shop required.

Step 3: Turn Compliance Into a Business Opportunity

Seize the Growing Opportunity with CARB’s Clean Truck Check Program

California’s Clean Truck Check program is expanding—testing requirements are doubling by 2027, creating a massive opportunity for certified testers and service providers. With over 1 million heavy-duty vehicles subject to routine emissions testing, fleet owners need reliable, on-site solutions to stay compliant. Whether you’re a fleet operator ensuring regulatory compliance or a service provider looking to add a lucrative new revenue stream, now is the time to act.

Heavy-Duty Vehicles require emissions testing statewide.
x tests
Moving from 2 to 4 tests per year by 2027.
+
Thousands of fleets statewide need certified testers to stay compliant.

Don’t Miss Out—Start Testing Today!

Become a CARB-certified tester and capitalize on the growing demand for Clean Truck Check services.

Whether You Manage Fleets or Service Them, This is Your Opportunity

Unlock new revenue, ensure compliance, and stay ahead as CARB expands testing requirements.

Turn Compliance into a Business Opportunity

More trucks need testing, and demand for certified testers is skyrocketing. Become a Clean Truck Check provider and offer emissions testing as a profitable new service—helping fleets stay compliant while growing your business.

Stay Compliant & Keep Your Fleet Moving

Avoid fines, prevent downtime, and stay ahead of CARB’s expanding regulations. Get certified, streamline emissions testing, and ensure your vehicles remain on the road without disruptions.

Aligned with Industry Standards & Regulation

The Clean Truck Check Ecosystem

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