If you live in Colorado and don`t ask your technician to install a CARB-compliant catalyst when repairing a converter, you probably won`t pass the Colorado emissions test because CARB-compliant converters produce lower levels of harmful emissions passed through the exhaust system. To pass the inspection, your technician must install a CARB-compliant converter. The California Air Resources Board issues executive orders exempting certain catalysts from anti-tampering regulations and laws. This exemption allows the use of “exempt” (approved) catalysts in California and states that have adopted regulations in Title 13 of the California Regulatory Code, Section 2222. Colorado also has regulations regarding engine modifications: The bill prohibits participation in an intrusive display of motor vehicle exhaust, which is the act of knowingly blowing black smoke through one or more exhaust pipes attached to a motor vehicle with a raw vehicle with a total laden weight of 14,000 pounds or less, in a way that: it would disturb another driver. a cyclist or pedestrian and obstruct or obscure the view of another driver, cyclist or pedestrian. A person who violates the prohibition commits a Class A traffic offence, punishable by a fine of $100. 1. Every registered motor vehicle travelling on a motorway shall at all times be equipped with an appropriate silencer in continuous operation and properly maintained to avoid excessive or unusual noise, and no such silencer or exhaust system shall be equipped with a stopping, bypass or similar device. No person shall alter the exhaust system of a motor vehicle in such a way as to amplify or amplify the noise emitted by the engine of that vehicle beyond that emitted by the silencer originally installed on the vehicle, and such original silencer shall comply with all the requirements of this section.

(2) A silencer is a device consisting of a series of chambers or deflectors or other mechanical engineering to absorb exhaust gases from an internal combustion engine and reduce noise. A catalytic converter is an exhaust gas cleaning device installed in the exhaust system of vehicles powered by an internal combustion engine. Catalysts reduce toxic pollutants by chemically converting carbon monoxide, unburned hydrocarbons and nitrogen oxides into harmless compounds. Whether you currently live in Colorado and want to modify your car or move to the area and make sure your vehicle is legal on the road, you need to know the laws and regulations throughout the state. Here`s what you need to know to make sure your vehicle is legal on Colorado roads. Catalysts have a substrate that contains precious metals such as platinum, palladium and rhodium. These precious metals serve as catalysts that process harmful raw exhaust gases and convert them into less harmful gases such as water, carbon dioxide and nitrogen. CARB-compliant catalysts typically use a higher precious metal filler due to the longer service life requirements of carB standards, as well as mass-based emission standards for carb instead of the conversion efficiency standards used by the EPA. Prior to installation, installers should review the manufacturer`s catalog of catalytic converter applications to ensure that the converter model is designed for the specific application of the vehicle and is specifically approved for use in Colorado.

Statements such as “approved for use in OBD II vehicles” do not necessarily mean that the approval is valid for Colorado. If you have any questions, you can contact the CDPHE at (888) 861-2646 or CDPHE_mobile@state.co.us. Here`s how to determine which aftermarket catalysts are legal for use in Colorado. Rep. K. Becker, Rep. M. Foote, Rep. C.

Hansen, Rep. C. Kennedy, Rep. S. Lontine, Rep. J. Melton, Rep. P. Rosenthal, Rep. J.

Singer gasoline engines over three model years old must pass emissions tests. Colorado joins California, New York and Maine as states with stricter catalyst regulations. Effective January 1, 2021, a new regulation will affect all aftermarket catalyst repairs performed in the state of Colorado. NOTE: The Colorado Air Quality Control Board passed the following amendments to its Regulation 20 (which created these programs) in August 2021. This new version of Regulation 20 came into force in January 2022. Learn more about CARB-compliant catalytic converters, find the right car part today, or find a local workshop. A list of approved replacement catalysts can also be found on the California Air Resources Board`s website: ssl.arb.ca.gov/AftermarketParts/catalysts According to the Colorado Department of Public Health and Environment, only the sale and installation of new aftermarket catalysts manufactured to California Air Resources Board (CARB) standards is permitted in the state of Colorado. CDPHE hosted webinars in January 2021 to explain the new secondary market catalyst requirements. There may also be cases where neither a CARB certified replacement catalytic converter nor an OEM replacement catalytic converter is available for a particular vehicle model. This would happen when OEM replacement catalysts are no longer available (for example, the brand has been discontinued) and none of the aftermarket catalyst manufacturers have received a CARB order.

Contact the CDPHE at (888) 861-2646, as there may be an appropriate replacement option for a similar vehicle application. Starting January 1, 2021, follow these steps to identify the part number you need to perform the repair: Webinar: “Understanding Colorado Aftermarket Catalytic Converter New Regulations” Walker® makes it easier to choose the right replacement catalyst for your vehicle that meets Colorado requirements. Walker`s CalCat converters feature catalytic technology that provides the right material and catalyst design, including the right loading of precious metals, combined with a precise OE-style substrate coating process® and a high-tech wash jacket for consistent performance that meets CARB emission standards. Colorado only requires that vintage, classic, and custom vehicles be registered at your local DMV location. In 2018, the Air Quality Control Board adopted California`s requirements for aftermarket catalytic converters in Title 13, California Code of Regulations, Section 2222. Vehicles with a total laden weight greater than 6,000 pounds produced before 1973 may not produce noise greater than 88 decibels at 35 MPH or less, or 90 decibels between 35 and 55 MPH. If a CARB-approved alternative catalyst cannot be identified on the CARB Aftermarket Catalyst website or in the manufacturer`s catalogue; Please call (888) 861-2646 for more information. The content of this article is for informational purposes only and should not be used instead of seeking professional advice from a certified technician or mechanic.

We recommend that you contact a certified technician or mechanic if you have any specific questions or concerns regarding any of the topics covered here. In no event will we be liable for any loss or damage caused by your reliance on the Content.