Colorado’s commercial vehicle chain law goes into effect September 1 - CDLLife
Colorado's commercial vehicle chain law takes effect September 1, requiring trucks to carry tire chains during winter months on certain highways.
Aforeworn detected this change in the Trucking / FMCSA Compliance space on August 20, 2026 and published this briefing so affected operators are forewarned rather than caught off guard. It is rated Medium urgency. Commercial motor vehicle operators and motor carriers operating in Colorado, especially on mountain highways during winter. should confirm how it applies to their specific situation before acting. There is a time constraint attached: September 1 (effective date). Acting after that point can mean penalties, a lapsed licence, or lost eligibility — exactly the kind of surprise Aforeworn exists to prevent. Aforeworn monitors Trucking / FMCSA Compliance continuously and turns every detected change into a plain-English briefing like this one, so you always know first. Forewarned is forearmed.
What changed
New state law mandates that commercial vehicles carry tire chains during specified winter periods on designated highways.
Who it affects
Commercial motor vehicle operators and motor carriers operating in Colorado, especially on mountain highways during winter.
What you must do
Ensure all commercial vehicles have appropriate tire chains and are prepared to install them when required.
Deadline
September 1 (effective date)
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