Passing the California Clean Truck Check: Proven Steps for Fleet Compliance Success

What is the California Clean Truck Check?

The California Clean Truck Check (HD I/M Program), started in January 2023, is designed to reduce heavy-duty vehicle emissions across the state. For fleet operators in San Francisco, the East Bay, and San Jose, this means regular emissions testing, OBD (on-board diagnostics) checks, and proof of compliance with CARB regulations 2023.

Non-compliance can lead to fines, downtime, and loss of operating authority. But with the right strategy, your fleet can stay ahead of the curve.

At Dogpatch Biofuels, we don’t just deliver renewable diesel, DEF, and commercial fueling services. Please inquire for CTC Certification discounts for Fuel Customers.

Why Compliance Matters for Bay Area Fleet

Fleet owners face more than just regulatory deadlines. Passing the California truck emissions test also impacts:

• Operational Efficiency: Trucks out of compliance can be pulled from service.

• Reputation: Customers increasingly demand sustainable, CARB-compliant operations.

• Costs: Non-compliance penalties, repair costs, and downtime all eat into profits.

That’s why proactive planning is essential.

5 Proven Steps to Pass the California Clean Truck Check

1. Stay Informed on CARB Regulations 2023

The CARB Clean Truck Check will require routine OBD reporting and emissions compliance. Dogpatch Biofuels keeps Bay Area fleets updated on the latest California trucking law updates so you’re never caught off guard.

2. Use Cleaner Fuels (Renewable Diesel)

Switching to renewable diesel delivery immediately reduces emissions and helps trucks meet California heavy-duty vehicle emissions requirements. It’s a drop-in replacement for petroleum diesel, with no modifications required.

3. Schedule Preventative Maintenance & Diagnostics

Regular OBD diagnostics and diesel truck maintenance help fleets identify issues before testing. Partnering with compliance-focused providers ensures your vehicles are always inspection-ready.

4. Ensure Proper DEF Supply & Quality

Modern diesel engines require DEF (Diesel Exhaust Fluid) for emissions control. Dogpatch Biofuels provides DEF delivery and bulk DEF solutions across San Francisco, East Bay, and San Jose, so your fleet never runs out.

5. Work with a Local Compliance Partner

Passing isn’t just about testing—it’s about strategy. Dogpatch Biofuels offers fleet compliance consulting to align your fueling program, maintenance, and documentation with California Clean Truck Check compliance standards.

How Dogpatch Biofuels Supports Compliance

When fleets in San Francisco, the East Bay, and the greater Bay Area partner with Dogpatch Biofuels, they get more than just fuel. They get a compliance ally.

Clean Diesel Delivery – Cleaner, CARB-compliant fuel Fleet Fuel Delivery Services – On-site fueling saves time and reduces emissions DEF & Bulk DEF Delivery – Keep emissions systems running smoothly Generator & Off-Road Fueling – Ensure every piece of equipment is compliant Compliance Guidance – Support with HD I/M compliance testing LBE, WBE, and SF green business certification

Get compliant with CTC regulations

The Clean Truck Check enforcement deadlines are approaching fast. Fleets that prepare now will avoid penalties, reduce downtime, and gain a competitive advantage.

At Dogpatch Biofuels, we help fleets across San Francisco, San Jose, and the East Bay stay on the road, stay compliant, and stay profitable.

📞 Call Dogpatch Biofuels today or request a quote online to learn how renewable diesel, DEF delivery, and fleet fueling services can keep your business ahead of California’s toughest emissions requirements.