Emissions Test Failure: When a vehicle fails the emission test, the owner needs to attempt to repair the vehicle. For 1968 and newer model gas powered vehicles, If the owner has spent $715.00 in emissions related repairs, the vehicle may qualify for a waiver. For vehicles 1967 and older, if the owner has spent $75 in emissions related repairs, the vehicle may qualify for a waiver.
If the vehicle still does not pass the emissions test, Department of Revenue staff can work with the owner to issue a waiver when the car meets all waiver requirements. This waiver allows the owner to register the vehicle which gives the owner time to repair the vehicle to pass the emissions test and to drive the car for one testing cycle.
Emissions testing is a crucial requirement in Colorado aimed at reducing air pollution and protecting public health. It involves evaluating the exhaust emissions of vehicles to ensure they meet specific standards set forth by the Colorado Department of Public Health and Environment (CACHE). Vehicles with higher emissions contribute significantly to poor air quality and the formation of harmful ozone and particulate matter. There are two main types of emissions testing in Colorado — On-Board DiagnosticOLDBD) testing and Tailpipe testing. OLD testing is applicable to newer vehicles manufactured after 1996, and it focuses on scanning the vehicle's onboard computer system to identify any potential malfunctions or emission-related issues. This type of testing typically involves plugging a diagnostic device into the vehicle's OLD port, which then communicates with the vehicle's computer to gather emission-related data. Tailpipe testing, on the other hand, is applicable to older vehicles manufactured before 1996, and it measures the actual exhaust emissions produced by the vehicle. During this process, a certified emissions' inspector will connect exhaust gas analyzers to the tailpipe of the vehicle while it is running. These analyzers measure the levels of carbon monoxide (CO), nitrogen oxides (NOX), hydrocarbons (HC), and sometimes carbon dioxide (CO2) emitted by the vehicle. It is important to note that emissions testing is mandatory for most gasoline-powered vehicles, as well as diesel-powered vehicles weighing less than 16,000 pounds. However, motorcycles, electric vehicles, hybrid vehicles, and pure natural gas vehicles are exempt from emissions testing in Colorado. The frequency of emissions testing depends on various factors such as the age, fuel type, and county where the vehicle is registered. In the Denver-Metro and Northern Front Range areas, vehicles must undergo emissions testing every two years. The testing process is typically administered at licensed facilities known as Air Care Colorado stations or authorized private inspection stations. It is crucial for vehicle owners to comply with emissions testing requirements, as failure to do so may result in penalties, vehicle registration issues, or even legal consequences. Additionally, ensuring that vehicles pass emissions testing helps to promote cleaner air, reduced greenhouse gas emissions, and a healthier environment for all Coloradans.
