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Why We Should Care About CARB



What is CARB? The California Air Resources Board (More often known as CARB) is a regulatory body for the state of California that creates the states standards for clean air. This excerpt is from CARB's own website, "CARB is charged with protecting the public from the harmful effects of air pollution and developing programs and actions to fight climate change. From requirements for clean cars and fuels to adopting innovative solutions to reduce greenhouse gas emissions, California has pioneered a range of effective approaches that have set the standard for effective air and climate programs for the nation, and the world." When a new product comes onto the market that may have an impact on green house gas emissions, in order for it to be available for purchase in California that product must have a CARB Executive Order (EO).

To obtain a CARB EO companies will have to have their products tested to show that the green house gas emissions of the product meets the standards of CARB. Once the testing is done CARB will either say the product is not up to snuff and development will have to continue and the product can be re-tested, or they will issue an EO for the new product. Once an EO has been received the product can be sold in California. Many companies spend much development time and money to get CARB EOs COBB Tuning, and Edlebrock to name a couple of commonly used brands. Even in the world of performance parts they are able to obtain EOs for their parts and are able to build performance cars while still being environmentally friendly.

"I don't live in CA so why should I care?" While CARB is a California based agency other states are starting to adopt some of their standards for their own emissions boards. When a product has a CARB EO it shows that it meets the highest standards for emissions testing, and the EPA knows that the product at least meets the 1974 Clean Air Act standards. Despite what a lot of people think the EPA does not create laws they are an enforcement agency. They create regulations based on laws that are passed and enforce them. EPA works with other agencies including CARB to ensure that they are in line with what the law says. Because of this collaboration CARB EO approved products can be sold in all 50 states in the US. Because of this and the testing process through CARB aftermarket manufactures can obtain "EPA Approval" without having to get an OEM certification, which is what car makers have.

CARB and the process of obtaining an EO makes products that are cleaner and better for the environment more accessible to everyone. For people that don't live in California see CARB EOs on the products they buy, then you can be assured that if your state adopts CARB standards in the future then your products are still safe. Supporting manufactures that go through this process will encourage others to do the same, and we can have more aftermarket performance parts that help keep our air clean! You can learn more about CARB and the EPA here;



 
 
 

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AWDTuning is a full-service performance and motorsports shop based in Flower Mound, Texas, serving DFW and clients nationwide through remote tuning. We specialize in calibration, diagnostics, dyno testing, performance maintenance, and custom builds across Subaru, BRZ/GR86, Nissan VR30, Mustang Coyote, GT-R, and more.

Unlike basic repair shops or “flash tune” operations, our approach is data-driven and reliability-focused. Every vehicle is evaluated as a system — fuel delivery, airflow, ignition, mechanical condition, and usage goals all factor into how we build your calibration or repair strategy. Whether you need remote e-tuning, dyno verification, standalone ECU calibration, or in-depth diagnostics for a problem car, our process is structured, repeatable, and transparent.

We work with COBB, EcuTek, HP Tuners, and professional standalone systems such as Haltech, Link, Emtron, and MoTeC. In-house Mustang AWD dyno testing allows us to validate changes under controlled load. Our diagnostic workflow is built around solving issues before tuning — misfires, knock, boost leaks, fuel pressure problems, drivability concerns, and sensor plausibility checks.

From daily-driven street cars to high-horsepower builds and motorsport applications, AWDTuning provides complete support from initial consultation through final calibration. If you’re looking for a shop that understands both performance and reliability, you’re in the right place.

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