Is Commercial Chain Set Legal in Montana? (2026)
Yes. In Montana, commercial chain set is legal. Montana’s MDT guidance distinguishes year-round chain deployment orders from the seasonal carrying requirement for specified heavy towing vehicles..
Key facts
- Status
- Legal
- Permit required
- No
- Jurisdiction
- Montana
- Last reviewed
- 2026-04-09
Commercial Chain Set laws in Montana
MDT may require chains or traction equipment year-round when dangerous or unsafe highway conditions warrant them in designated areas. Under the guidance, vehicles towing a trailer must apply chains to the driving wheels of one axle when the requirement is activated; MDT identifies AutoSock as an approved alternative. Separately, between October 1 and April 30, towing units rated 26,001 GVW or greater must carry chains or an approved traction device when traveling where chains may be required; MDT states that this carrying provision does not apply to a four-wheel-drive vehicle. That exception is not stated as a blanket exemption from a separate active chain-use order. Use the official location list and current signs to determine the affected route. This guidance does not approve a particular chain tensioner product or every alternative device.
Frequently asked questions
Is commercial chain set legal in Montana for travelers?
For travelers visiting Montana, commercial chain set is currently legal. MDT may require chains or traction equipment year-round when dangerous or unsafe highway conditions warrant them in designated areas. Under the guidance, vehicles towing a trailer must apply chains to the driving wheels of one axle when the requirement is activated; MDT identifies AutoSock as an approved alternative. Separately, between October 1 and April 30, towing units rated 26,001 GVW or greater must carry chains or an approved traction device when traveling where chains may be required; MDT states that this carrying provision does not apply to a four-wheel-drive vehicle. That exception is not stated as a blanket exemption from a separate active chain-use order. Use the official location list and current signs to determine the affected route. This guidance does not approve a particular chain tensioner product or every alternative device.
Do I need a permit for commercial chain set in Montana?
Montana does not specifically require a permit for commercial chain set, though general regulations apply.
Can I transport commercial chain set through Montana?
Transport laws for commercial chain set in Montana depend on the specific item and your route. Generally, transport is allowed if you comply with state regulations. Always check states you pass through.
What are the penalties for commercial chain set violations in Montana?
Penalties for commercial chain set violations in Montana vary based on the specific offense. Always verify current laws before traveling.