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Is your fleet CARB-compliant?

Avoid costly fines – ensure your vehicles comply with the Clean Truck Check and aftermarket parts regulations. 

Clean Truck Check compliance can save you thousands of dollars per truck in downtime and penalties

Taking a truck off the road for emissions testing, repairs, maintenance and compliance violations can cost thousands of dollars per vehicle. Geotab’s GO Telematics Kit and emissions reporting software automatically gather and report the data needed to fulfill your Clean Truck Check obligations, without taking vehicles off the road, so you can avoid costly downtime and penalties.

The continuously connected, CARB-compliant telematics solution

Heavy trucks that operate in California – no matter where they dispatch from – must meet the Clean Truck Check standards. Violations could mean fines of over $70,000 per day between the U.S. Environmental Protection Agency (EPA) and California Air Resources Board (CARB).

 

The first compliance deadline is January 1, 2025. Emission reports must be submitted within 90 days of the deadline. 

 

Geotab’s CARB-compliant GO Telematics Kit and Emissions Diagnostics Report software make compliance easy by directly obtaining the required data from vehicles and submitting it to CARB.

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Continuous connection and automatic reporting save you time and money

An out-of-service truck can cost a fleet $450 to $750 per day or more, so a non-compliant vehicle that is out of service for a few days to a week or more could cost thousands of dollars in repairs and lost productivity. 

 

Don’t let compliance take your trucks off the road. Geotab’s CARB-compliant GO Telematics Kit can eliminate regular manual inspections and help make sure your vehicles are not sitting idle.

truck parked in maintenance bay

Proactively identify maintenance needs for compliance and performance

Fleet managers need to know which vehicles have passed or failed an emissions test, when they need maintenance and what faults are causing problems – before an issue forces a truck off the road. 

 

Geotab’s CARB-compliant Emissions Diagnostics Report does it all. Plus it is part of our secure online platform, MyGeotab, which also allows users to prioritize repairs; coordinate maintenance schedules, inventory and work orders; produce maintenance cost reports; and manage driver behavior to minimize vehicle wear.

clean truck check program dashboard

Simplify and integrate CARB compliance for peak performance

In an industry where every point of efficiency counts, the Clean Truck Check program is an opportunity for fleets to streamline processes and integrate CARB compliance into existing procedures. With Geotab’s GO Telematics Kit and the Emissions Diagnostics Report, you can:

  • Seamlessly manage CARB compliance in your normal operations
  • Automatically send required data to CARB
  • Avoid taking your vehicles off the road for smog checks
  • Receive immediate inspection information (pass/fail, next inspection date) 
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Geotab’s CARB-compliant T-harness eliminates the risk of fines

Fleets take note: connecting a T-harness that is not covered by an executive order from CARB can lead to fines up to $42,450 per infraction. Geotab’s GO Telematics Kit includes a CARB-compliant aftermarket T-harness that eliminates the risk of violations and fines.

The CARB standard for aftermarket telematics solutions

CARB prohibits any changes to a vehicle’s OEM emissions controls system and on-board diagnostic (OBD) port. Violations may result in a maximum penalty of $42,450 for each non-compliant  installation. This affects all T-harness solutions on the market that relocate or replace the manufacturer’s OBD port. 

 

Geotab offers the first and only solution to receive a CARB Executive Order allowing the secure installation of a continuously connected telematics product using an aftermarket T-harness, having collaborated closely with CARB to ensure its telematics solutions meet the strict compliance standards.  

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Maintain data continuity

Without the use of a securely installed T-harness, an aftermarket telematics device can easily become dislodged, jeopardizing the integrity of the data collected by the device. Geotab’s CARB-compliant telematics solution enables you to legally install a Geotab GO9, GO9+ or GO9 Rugged telematics device in a manner that ensures it stays connected at all times, and also allows you to simultaneously plug in another device such as a scan tool to the OBD port of the vehicle.

view of cars driving on a highway

Gain actionable insights to manage fleet safety, productivity and profitability

Transform the uninterrupted data from multiple vehicle types, drivers and assets into insights, through Geotab’s integrated platform: 

  • Be more cost effective and efficient with tracking and routing solutions
  • Improve your fleet safety program with risk analytics
  • Automate CARB and Department of Transportation (DOT) compliance 
  • Drive your sustainable fleet strategy forward with data-driven insight
  • Expand solutions with an open platform
mygeotab overview dashboard

Future-proof your fleet’s compliance with advancing emissions regulations

California’s ambitious air and climate plans are a benchmark for the country and CARB paves the way for other states to develop and implement emissions regulation. 

 

By installing Geotab’s CARB-compliant aftermarket telematics solution in your fleet vehicles, you are ensuring compliance in California and putting yourself in the best position to be compliant in other states as they look to CARB for guidance on regulations and enforcement. 

truck driving on a road surrounded by trees

Webinar

How to comply with the Clean Truck Check regulations

The first deadline for CARB’s Clean Truck Check emissions testing program was January 1, 2025, and it’s not just for California fleets. Do your trucks meet the requirements?

 

Watch our on-demand webinar to discover how Geotab can help streamline your fleet compliance with the Clean Truck Check program. You’ll learn how you can automate emissions testing, minimize downtime and save money with Geotab's CARB-compliant Clean Truck Check solution.


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What is CARB compliance and how does it affect your fleet?

We’ve put together a comprehensive guide to help your fleet navigate the tricky terrain of CARB compliance. 

 

What you will learn:

  • How to meet CARB's requirements using our step-by-step breakdown, no matter where your fleet is based.
  • How telematics can simplify compliance and help fleets remain cost-effective.
  • How to protect your fleet's operations while contributing to cleaner air and public health.

Commonly asked questions about CARB compliance

California Vehicle Code sections 27156 and 38391 prohibit the advertising, sale, offering for sale, or installation of any add-on or modified aftermarket part for on- or off-highway vehicles that modifies the original design or performance of a California vehicle's emission control system, unless it is exempted by CARB. 

 

Pursuant to Health and Safety Code section 43016, a maximum civil penalty of $42,450 is applicable to each sale, offer for sale, installation, or advertisement of any part, device or mechanism intended for use with, or as part of, a required motor vehicle pollution control device or system that alters or modifies the original design or performance of the motor vehicle pollution control device or system, and for which an anti-tampering exemption has not been issued by CARB pursuant to CVC section 27156 and California Code of Regulations, title 13, section 2222.

For a product to be considered CARB-compliant, it must undergo extensive testing. If the product passes without harming a vehicle’s emissions control or measurement, it is assigned a CARB Executive Order (EO) number. Geotab’s GO Telematics Kit is the only aftermarket telematics solution with a T-harness to pass the rigorous CARB testing and receive an Executive Order. 

 

Geotab’s GO Telematics Kit enables you to use one of our compliant T-harnesses to legally connect a Geotab GO9, GO9+ or GO9 Rugged telematics device to the OBD port of a vehicle without violating the CARB regulations. With support for both J1939 and J1979 protocols, our GO Telematics Kit ensures seamless compliance with emissions regulations for heavy, medium and light-duty vehicles.

CARB’s Clean Truck Check is a program that aims to reduce greenhouse gas emissions within the transportation industry. It applies to heavy-duty, non-gasoline vehicles with a gross vehicle weight rating (GVWR) of over 14,000 pounds that operate in California (no matter where they are based). Under the program, fleets are required to test these vehicles for emissions on a regular basis and submit their results to CARB. The goal is to ensure fleet managers have the information they need to maintain and repair malfunctioning vehicle systems.

There are four methods for fleets to submit emissions-related data to remain in compliance:

  • Certified testing facilities: Fleets may take their vehicles to be tested at a facility operated by CARB employees.
  • Portable Emission Acquisition System (PEAQS): These systems are usually roadside and collect a snapshot of emissions data from your fleet vehicle.
  • In-house Periodic Smoke Inspection Program (PSIP) with non-continuously-connected OBD scan tools: This requires an employee in-house to manually collect emissions data from your fleet vehicles.
  • Employ a CARB-compliant telematics device to transmit data continuously: By utilizing a telematics device, fleets can collect emissions data continuously without inhibiting vehicle uptime.

1. Either a GO9®, GO9+® or GO9 Rugged® device.

 

2. A T-harness from the following list:  

 

HRN-GS09K2

HRN-GS09K2-A

HRN-GS16K22

HRN-GS16K22-A

HRN-GR09K1

HRN-GR09K1-A

HRN-BD16S5

 

3. A CARB EO label, which needs to be applied under the hood.

 

In addition, our secure cloud platform, MyGeotab, features emissions reporting software, which records and automatically submits the information required for compliance with the Clean Truck Check program.

Geotab’s GO9 devices record data from the vehicle and upload it to the secure MyGeotab online platform. An application created specifically for this integration requests this data from MyGeotab, encrypts it and sends it to CARB servers.

 

The data collection process occurs while the vehicle is not moving on the first Ignition ON event after a new installation, and every seven days thereafter. While in cellular coverage, the submission process happens immediately once the data is available. While out of cellular coverage, the GO device stores up to 15 complete submission files on the device until cellular coverage is restored.

Geotab is the first and only aftermarket telematics solution vendor at this time to receive an Executive Order from CARB for a continuously connected T-harness. Geotab collaborated closely with CARB to ensure our telematics solutions meet CARB’s strict compliance standards.

Avoid CARB violations, streamline compliance and maintain uninterrupted access to your fleet telematics data

Find out how Geotab can provide you with continuous data insights while ensuring compliance with CARB’s gold standard for aftermarket telematics solutions and the Clean Truck Check program. 

View last rendered: 07/15/2025 23:45:51