What you need to know about emissions testing in Colorado Springs

Colorado Springs requires emissions testing for most vehicles registered in El Paso County, and the test happens every two years as part of your vehicle registration renewal. The test measures what comes out of your tailpipe — carbon monoxide, nitrogen oxides, and particulate matter — to confirm your vehicle meets state air quality standards. You cannot renew your registration without a passing test result, and the test costs between $25 and $35 depending on which testing station you choose.

The Colorado Department of Public Health and Environment (CDPHE) oversees the program, but you take your vehicle to a private testing station, not a government office. Testing stations are scattered throughout Colorado Springs and the surrounding area — gas stations, repair shops, and dedicated emissions testing centers all perform the work. The actual test takes 10 to 15 minutes, and you get your result when ready.

Key Takeaways

  • Emissions testing in Colorado Springs is required every two years for vehicle registration renewal and costs $25 to $35 per test.
  • You must pass the test before you can renew your registration; a failed test means you cannot legally drive the vehicle until repairs are made and you retest.
  • Testing stations are privately operated but follow state standards, and you can find them by searching online or calling your local repair shop to ask if they perform testing.
  • Vehicles older than 1975 and some newer electric or hybrid vehicles are exempt from testing, but most gas-powered cars and trucks registered in El Paso County must test.

Which vehicles must be tested in El Paso County

Most gasoline-powered vehicles registered in El Paso County must pass emissions testing. This includes sedans, trucks, SUVs, and vans model year 1975 and newer. Diesel vehicles have their own testing protocol and are also required to test, though the standards differ from gasoline vehicles.

Vehicles that do not need to test include electric vehicles (zero tailpipe emissions), motorcycles, and vehicles older than 1975. Some newer hybrid vehicles may be exempt depending on their configuration, but you should confirm with your testing station or the CDPHE before assuming your vehicle is exempt. If you are unsure whether your vehicle must test, call a local testing station with your vehicle's year, make, and model — they can tell you in seconds.

Finding a testing station and scheduling

Testing stations operate throughout Colorado Springs and El Paso County. You can find them by searching "emissions testing near me" or "smog check Colorado Springs" online, or by calling local repair shops and asking whether they perform the test. Many Firestone, Midas, and independent repair shops offer testing. Gas stations sometimes partner with testing providers as well.

Most testing stations accept walk-ins during business hours, so you do not need an appointment. However, some busy locations may have a wait, especially during peak registration renewal periods (typically late summer and fall). If you want to avoid a wait, calling ahead to ask about current volume is worth a few minutes. Bring your vehicle keys, proof of registration, and a valid ID. The test itself takes 10 to 15 minutes.

What happens during the test

The testing station will connect a probe to your vehicle's tailpipe and measure emissions while the engine runs through a standardized cycle. For most vehicles, this is a two-speed idle test — the engine runs at normal idle, then at a higher RPM, and the machine records the pollutant levels at each stage. The technician does not need to drive your vehicle; the entire process happens while parked.

You will receive your result when ready after the test completes. If you pass, the station will provide a printed receipt or email confirmation showing your test result and the date. You can then use this result to renew your registration online, by mail, or in person at the El Paso County Motor Vehicle office. If you fail, the receipt will show which emissions standards you did not meet, and you will need to have your vehicle repaired before retesting.

What to do if your vehicle fails the test

A failed test means your vehicle's emissions exceed Colorado standards. Common reasons for failure include a faulty oxygen sensor, a malfunctioning catalytic converter, a check engine light that is on, or a fuel leak. The test result will indicate which pollutants were too high, which can help a mechanic narrow down the problem.

You have two options: repair the vehicle yourself at a shop of your choice, or use the testing station's repair services if they offer them. After repairs are complete, you must retest at any testing station — you do not have to return to the same one. Retesting costs the same as the initial test. Some repair shops offer a "retest may provide," meaning they will retest your vehicle free if it fails again after they complete repairs, so ask about this before authorizing work.

If your vehicle fails and repairs are expensive, you may be able to claim a repair cost waiver in some cases. Colorado allows waivers if repair costs exceed 7% of your vehicle's value, but this requires documentation and approval from the CDPHE. Ask your testing station or repair shop whether your situation qualifies.

Timing and registration renewal

Your emissions test result is valid for 60 days from the test date. You must complete your registration renewal within that window, or you will need to retest. Plan to test at least a few weeks before your registration expires to give yourself time to handle any repairs if needed.

You can renew your registration online through the Colorado Department of Revenue website, by mail, or in person at an El Paso County Motor Vehicle office. When you renew, you will need to provide your test result number or the receipt from the testing station. If you renew online or by mail, have your test receipt handy so you can enter the result information.

Cost breakdown and payment

The emissions test itself costs $25 to $35, depending on which testing station you use. This is a one-time fee per test. If your vehicle fails and you need repairs, those costs vary widely — a new oxygen sensor might cost $100 to $300 installed, while a catalytic converter replacement can run $500 to $2,000 or more depending on your vehicle.

The retest fee is the same as the initial test ($25 to $35). Most testing stations accept cash, debit, and credit cards. If you are on a tight budget and your vehicle fails, get a repair estimate from at least two shops before authorizing work, and ask whether either offers a retest may provide or payment plans.

Frequently Asked Questions

Can I test my vehicle before my registration expires?

Yes. You can test anytime, but your result is only valid for 60 days. If you test too early, you may need to retest before your registration renewal is complete. Most people test within 30 days of their registration expiration date to stay within the 60-day window.

What if I move out of Colorado Springs — do I still need to test?

If you move outside El Paso County but keep your Colorado registration, you may no longer need to test, depending on your new county. If you move out of Colorado entirely, you will follow your new state's rules. Contact your new state's motor vehicle office to confirm requirements.

Do I need to test if I just bought a used vehicle?

If you are registering a used vehicle for the first time in Colorado Springs, you will need a passing emissions test before you can complete registration. Plan to test within a week or two of purchase so you have time for repairs if needed.

What if the testing station says my vehicle cannot be tested?

This is rare but can happen if your vehicle has a serious mechanical problem (like a non-functioning fuel pump) that prevents the test from running. Ask the station for a written explanation, then have a mechanic diagnose and repair the underlying issue. Once fixed, you can retest at any station.

How do I know if my vehicle is exempt from testing?

Call a local testing station with your vehicle's year, make, model, and fuel type. They can confirm in seconds whether your vehicle must test. Electric vehicles and motorcycles are always exempt; vehicles older than 1975 are always exempt. Everything else should be confirmed with the testing station.