What Is The Colorado Traction Law? (2025)
Contributor
Reviewed By Adam Ramirez, J.D.
Editor
Summary
- Tire treads and traction devices help drivers navigate winter weather
- Colorado requires deep tire treads or traction devices during bad weather
- Not having the right equipment can lead to fines and citations
Winter weather can increase the risk of motor vehicle accidents, and some states practically shut down in a winter storm. However, Colorado winters are so icy and snowy that drivers must find a way to navigate the roads on a daily basis.
To reduce the risk of drivers losing control and causing accidents, Colorado has a traction law (and a related chain law) to encourage drivers to adequately prepare for the weather.
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What Is the Colorado Traction Law?
In 2019, Colorado implemented a traction law. When the traction law is active, all passenger vehicles must have at least one of the following:
- A 4WD or AWD vehicle with 3/16” tire tread depth
- Winter tires with 3/16” tread depth
- Mud and snow (M+S) tires with 3/16” tread depth
- All-weather tires with 3/16” tread depth
- Chains or alternative traction devices
The Colorado Department of Transportation (CDOT) can activate the traction law on any roadway when weather conditions warrant it.
What Is the Colorado Chain Law?
On its own, the traction law does a lot to try to prevent car accidents during winter weather. However, when weather conditions are particularly dangerous, CDOT will activate the Colorado chain law.
When this happens, all vehicles must have tire chains, AutoSocks or other traction devices. If weather conditions further worsen, CDOT may close the highway in the affected area.
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When and Where the Traction Laws Apply
From September 1 to May 31 each year, the traction law is always active on the portion of I-70 between Dotsero and Morrison. CDOT may activate the law on other roads when conditions call for it.
Who Must Comply With Colorado Traction Laws?
Traction laws apply to passenger vehicles (vehicles weighing less than 16,001 pounds).
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How to Meet Traction Law Requirements
To make sure you meet requirements, carefully measure your tire treads and ensure you have an approved tire type. It’s a good idea to have a traction device with you in case you need it.
Why Colorado Implements Traction and Chain Laws
Traction laws and chain laws help ensure road safety for everyone because they keep cars from sliding off the road.
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Legal Help After a Winter Car Accident
If you’ve been injured in a crash caused by someone who wasn’t in compliance with the traction law, a car accident lawsuit could help you recover the funds you need to cover medical care and other losses.
Not sure how to find a Colorado personal injury lawyer? That’s where we come in. ConsumerShield matches you with pre-vetted, nearby lawyers. Fill out our form and get started with a free case review!
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Frequently Asked Questions
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If you drive without adequate equipment when a traction law is in effect, you could be fined at least $130. If your lack of equipment leads to you blocking the road, you could be fined $650 or more.
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Yes. CDOT can implement either law on any state highway.
