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Compliance Services for Your Diesel Motorhome in California

Stay Compliant with the Clean Truck Check Program

Owning a diesel motorhome offers the freedom to travel in comfort, but in California, it also comes with regulatory obligations. If your diesel motorhome exceeds a gross vehicle weight rating of 14,000 pounds, it must meet CARB standards under the Clean Truck Check program. If you need assistance in keeping your motorhome compliant in California, CAARB is here to help you navigate the process with ease.

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Avoid Motorhome

Registration Holds

California motorhome owners must comply with annual emissions requirements under the Clean Truck Check program.

Vehicles are required to undergo emissions testing and pay an annual compliance fee, which aligns with their DMV registration expiration date.

Failing to adhere to these regulations can lead to serious consequences. Vehicle owners may encounter DMV registration holds, which prevent the legal operation of their motorhomes, along with other enforcement actions that may include fines and legal penalties. Completing the annual emissions testing and fee payment is essential to avoid these repercussions and ensure the motorhome remains compliant with state regulations.

CAARB offers comprehensive services to assist motorhome owners in navigating these requirements. Our experts manage all aspects of the compliance process, from initial registration to scheduling and overseeing emissions tests. With CAARB, motorhome owners can confidently fulfill CARB regulations, avoiding penalties and maintaining their vehicle’s legal status.

Timeline for Diesel Motorhome Compliance

The Clean Truck Check program kicked into high gear in 2024. However, emissions testing requirements

will not kick in until 2025. Here is a brief timeline of what motorhome owners must do:

2023: If your motorhome operated in California in 2023, you must pay the annual compliance fee for that year.
2024: As of January 31, all affected vehicles, including diesel motorhomes, should have registered in the Clean Truck Check system and paid the 2024 compliance fee.

2025: Emissions compliance testing requirements go into effect. Please note, you may not take your test more than 90 days before your vehicle’s compliance deadline. In most cases, the deadline is the month in which your registration expires.
2026 and beyond: You must pay an annual compliance fee and submit an emissions test.

Do You Have Questions About the

Clean Truck Check Program?

Many of our clients have shared concerns about maintaining their vehicles' CAARB compliance

under the new program. Below, you'll find answers to some frequently asked questions.

Registration

The ACF regulation sets a pathway to transition medium- and heavy-duty vehicles from diesel engines to zero-emission vehicles (ZEVs) by 2042, aiming for a significant reduction in carbon Bullet listemissions across California.

Compliance Fees

A $30 compliance fee is required for each qualified vehicle operating in California in 2023. For 2024, if a vehicle’s compliance deadline falls between July and December, an additional compliance fee will be necessary. This annual fee will become a standard part of your CTC compliance obligations.

Emissions Testing Requirements

Regular emissions testing will begin in 2025. Every vehicle in your fleet must undergo testing twice a year. By 2027, the testing frequency will increase to four times a year. Most qualified vehicles will need to pass an OBD test, while pre-2013 engines will require the older opacity test. All tests must be conducted by a credentialed tester.

Diesel Motorhome Notes

If your diesel motorhome has a GVWR exceeding 14,000 pounds and is registered in California, the CTC regulations mentioned above apply. You must register your vehicle and pay the compliance fee. However, motorhomes are only required to undergo testing once per year.

Out-of-State Trucks Notes

CTC requirements extend to vehicles registered outside of California that operate on state highways. You must register every vehicle in your fleet, pay the compliance fee, and receive scheduled emissions tests to continue operating legally in the state.

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Ensure California Motorhome

Compliance with CAARB

Keep your motorhome compliant with CARB regulations effortlessly with our assistance. Contact CAARB today for a free consultation, and let our experts manage your annual emissions testing and fee payments. Avoid penalties and keep your vehicle on the road!

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Do You Have Questions About

Diesel Motorhome Compliance?

CAARB aims to provide you with the information necessary to keep your motorhome active and compliant in California.

Here are some answers to frequently asked questions we receive.

What Is the Clean Truck Check Program?

The Clean Truck Check program established by CARB is designed to assess the functionality of emissions control systems in heavy-duty vehicles. This program applies to nearly all diesel and alternative fuel heavy-duty vehicles with a gross vehicle weight rating (GVWR) exceeding 14,000 pounds that operate on California public roads. Diesel motorhomes within this weight class are included in the program.

When are the compliance deadlines for California-registered motorhomes?

For California-registered motorhomes, the compliance deadline is aligned with the vehicle’s DMV registration expiration date.

How Do I Arrange an Emissions Test for My Vehicle?

The certified testers at CAARB will come to your location to conduct the emissions test. For most vehicles, this includes an OBD inspection, which typically takes about half an hour.

What are the consequences of failing to comply with CARB regulations?

Failing to comply can result in DMV registration blocks, preventing the legal operation of the motorhome, and may lead to fines and other enforcement actions.

How Can CAARB Help with Motorhome Compliance?

CAARB supports diesel motorhome owners by assisting with vehicle registration, scheduling emissions tests, managing compliance fee payments, and ensuring that all regulatory requirements are met. This helps avoid penalties and maintain the legality of your vehicle.