What You Should Know About Colorado’s New Restriction Codes To The Chain Law

What You Should Know About Colorado’s New Restriction Codes To The Chain Law

Effective immediately, Colorado has adopted new restriction codes to the chain law for passenger vehicles, SUVs and small trucks when winter weather causes severe driving conditions. When CDOT (Colorado Department Of Transportation) determines conditions are adverse they may enforce a “Code 15” or “Code 16” restriction.


Cars on the road during Code 15 restrictions must have one of the following to proceed:


  • Snow tires with at least 1/8″ tread


  • All weather tires marked M/D (mud/snow) with at least 1/8″ tread


  • An AWD car with at least 1/8″ tread on the tires


  • Traction devices (chains/auto sock) for two drive tires


Test your treads.

Fines for cars caught driving under Code 15 restrictions that don’t meet one of the above conditions can be fined $133. Cars blocking traffic who don’t meet the conditions will be fined $657.00.


Code 16 restrictions require all cars on the road have chains or Auto Socks. In
2014 Gifts For Cars, we wrote about the Auto-Sock, and are pleased that it’s been approved as an alternative to chains in Colorado. The Auto-Sock is much easier to install than traditional chains (excellent for the ladies and young drivers in your life.

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