Mississippi Tire Chain Laws
Mississippi has no chain-up mandate for trucks. Chains are permitted, not required. You may run tire chains of reasonable proportions when snow or ice makes them needed for safety (Miss. Code 63-7-67). MDOT posts no R-1 levels or 'Chains Required' signs anywhere in the state. North Mississippi grades on I-22 and I-55 are where you might chain by choice in a rare storm. Check MDOTtraffic.com or the MDOT Traffic app before you roll.
How Mississippi handles chains
Mississippi has no chain-up mandate for trucks. Chains are permitted, not required. You may run tire chains of reasonable proportions when snow or ice makes them needed for safety (Miss. Code 63-7-67). MDOT posts no R-1 levels or 'Chains Required' signs anywhere in the state. North Mississippi grades on I-22 and I-55 are where you might chain by choice in a rare storm. Check MDOTtraffic.com or the MDOT Traffic app before you roll.
When, where, and what counts
- When required: Optional. MDOT posts no chain order and no chain-control signs. Chains are allowed for traction in snow and ice, never required.
- Where: No mandate. North Mississippi around Tupelo on I-22 and the hill country on I-55 are where you might chain by choice in a rare storm.
- Applies to: No CMV chain mandate. The permissive rule applies to any vehicle, with no weight threshold.
- Chains vs traction devices: Chains of reasonable proportions are allowed when snow, ice, or slick conditions make them needed for safety (Miss. Code 63-7-67). Non-rubber protuberances that hit the road are otherwise barred. No posted device tiers, so cable chains or AutoSock are a driver choice.
- Check the live order: MDOT Traffic at MDOTtraffic.com, or the free MDOT Traffic app (App Store or Google Play).
- Fine: No chain-up fine, because chains are not required. Chains are optional for safety.
Mississippi Chain Law FAQ
Does Mississippi have a tire chain law?
When are chains required in Mississippi?
Where do Mississippi's chain requirements apply?
Does Mississippi accept AutoSock or alternative traction devices?
Reference information for planning, not legal advice. Traffic laws change and this can be out of date, so always confirm the current statute and obey posted signs before you rely on it. Last reviewed September 2026. Source: https://www.lexisnexis.com/hottopics/mscode. See our Terms & Disclaimer.
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