Colorado's commercial vehicle chain law expanded to roads beyond I-70, starting September 1 - CDLLife
Colorado expands its commercial vehicle chain law to roads beyond I-70, effective September 1. Truckers must carry chains and use them when required on these additional routes.
Aforeworn detected this change in the Trucking / FMCSA Compliance space on August 26, 2026 and published this briefing so affected operators are forewarned rather than caught off guard. It is rated Medium urgency. All commercial motor vehicle operators traveling on Colorado roads beyond I-70, including owner-operators, small fleets, and large carriers. 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
The chain law now applies to roads beyond I-70, meaning additional routes will require carrying and using tire chains during winter conditions.
Who it affects
All commercial motor vehicle operators traveling on Colorado roads beyond I-70, including owner-operators, small fleets, and large carriers.
What you must do
Review the specific roads covered and ensure chain supply and installation procedures are ready before September 1.
Deadline
September 1 (effective date)
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