Where to get your emissions test in Loveland

Loveland is in Larimer County, which is part of the Denver metro area's air quality management region. That means your vehicle must pass an emissions test before you can renew your registration — but you do not take the test in Loveland itself. Instead, you drive to one of the testing stations in the Denver area that the state has approved.

The Colorado Department of Public Health and Environment (CDPHE) maintains a list of all approved testing stations on their website. You can search by county or city to find stations near you. Most stations are in Denver, Boulder, or Fort Collins, which are 30 to 60 minutes from Loveland depending on traffic. A few stations operate in smaller towns closer to you — checking the state list first saves a wasted trip.

Testing stations are typically run by independent repair shops, not government offices. They charge a fee (usually between $20 and $30) to run the test, and that fee goes to the shop, not the state. The fee is the same whether you pass or fail.

Key Takeaways

  • Loveland residents must test through an approved station in the Denver metro area because Larimer County is part of that air quality region.
  • The Colorado Department of Public Health and Environment publishes the complete list of approved testing stations, searchable by location.
  • You need your vehicle's VIN, current mileage, and a valid ID when you arrive at the station.
  • If your vehicle fails, you have until your registration important date to repair it and retest at any approved station.

What happens during the test

The test itself takes 10 to 20 minutes. A technician will connect your vehicle to a machine that measures the emissions coming from your tailpipe. The machine checks for nitrogen oxides, particulate matter, and other pollutants. Your vehicle either passes or fails based on whether those levels fall within the state's limits for your vehicle's year and type.

You do not need to do anything special to prepare. Your vehicle should be in normal operating condition — the engine should be warm, and you should have enough fuel to run the test. If your check engine light is on, the test will fail automatically, even if your emissions are otherwise within limits.

The technician will give you a printed receipt showing whether you passed or failed. If you passed, that receipt is proof for your registration renewal. If you failed, the receipt will tell you which emissions were too high, which helps a mechanic figure out what to fix.

What to bring and when to test

Bring your vehicle's VIN (Vehicle Identification Number), your current mileage, and a valid ID. The VIN is on your registration or on a sticker inside the driver's side door. You do not need to bring your registration itself, though having it does not hurt.

You can test any time during your registration year, but most people wait until a few months before their registration expires. That gives you time to fix any problems if you fail. If you test too early — more than a year before your registration expires — the results may not be valid for renewal. Check your registration card to see when your renewal is due.

If your vehicle fails the test

A failure does not mean you cannot renew your registration. Instead, you have until your registration important date to repair the vehicle and retest. You can retest at any approved station, not necessarily the one where you failed.

The repair costs depend on what failed. Common fixes include replacing an oxygen sensor, fixing a fuel leak, or replacing a catalytic converter. Some repairs cost $100 to $300; others can cost $500 or more. If repairs are very expensive, you may want to get a second opinion from a different mechanic before proceeding.

After you repair the vehicle, you pay the testing fee again and retest. There is no limit on how many times you can retest, so you can keep trying until you pass.

Vehicles exempt from testing

Not every vehicle in Loveland needs to test. Vehicles that are less than 4 model years old are exempt — so a 2024 vehicle registered in 2024 does not need to test. Vehicles that are 25 model years old or older are also exempt. Diesel vehicles, motorcycles, and vehicles registered as antiques or collector vehicles have different rules or are exempt entirely.

Check your registration notice when it arrives. It will tell you whether your vehicle needs to test. If you are unsure, you can call the Colorado Division of Motor Vehicles or check the CDPHE website.

How emissions testing connects to your registration

You cannot renew your vehicle registration without a passing emissions test result (unless your vehicle is exempt). When you renew online or at a county office, the system checks whether a passing test result is on file for your vehicle. If there is no result, or if the result is a failure, the renewal will not go through.

The test result is valid for one year from the date you test. If you test in January, that result covers your registration renewal through January of the following year. After that, you will need to test again.

Finding a testing station near you

The fastest way to find a station is to visit the CDPHE website and use their testing station locator. You can search by county (Larimer) or by city. The list shows the station's address, phone number, and hours. Some stations are open weekdays only; others are open on Saturdays. A few are open on Sundays, though those are less common.

Call ahead if you want to know how busy a station is. Some stations take walk-ins; others require an appointment. Calling also lets you confirm their hours and ask whether they test your type of vehicle (though most test all standard passenger vehicles).

Frequently Asked Questions

Can I test my vehicle in Loveland instead of driving to Denver?

No. Loveland is in Larimer County, which is part of the Denver metro air quality region. You must use an approved station in that region. The CDPHE website shows which stations are closest to Loveland — some in Fort Collins or Boulder may be faster than driving all the way to Denver.

What if I fail the test and cannot afford to fix my vehicle?

You have until your registration important date to repair and retest. If repairs are very expensive, get a second opinion from another mechanic. Some repairs are cheaper than others, and a different shop may find a less costly fix. You can also ask the testing station which emissions were high — that narrows down what might be wrong.

Do I need to make an appointment at the testing station?

It depends on the station. Some take walk-ins during their posted hours; others require an appointment. Call the station before you go to find out. Calling also tells you how long the wait is, so you can plan your trip.

How long does a passing test result stay valid?

One year from the date you test. If you test in March, that result is valid through March of the next year. After that, you will need to test again to renew your registration.

What if my check engine light is on?

Your vehicle will fail the test automatically, even if your emissions are otherwise within limits. You must fix the problem that triggered the light, then retest. A mechanic can read the code to tell you what is wrong.