State comparison · Updated October 2026
Louisiana vs. Mississippi Driving Laws (2026)
Louisiana and Mississippi part ways on 4 of 9 topics we track: max speed limit, phone law, car insurance and car inspection.
On a trip from New Orleans to Jackson crosses the border, and 4 of these laws differ once you cross. Main routes include I-10 on the Louisiana side and I-55 in Mississippi; the capitals, Baton Rouge and Jackson, set the rules for their side.
What changes most: minimum coverage differs: 15/30/25 versus 25/50/25. Residents of Baton Rouge who travel to Gulfport, or vice versa, deal with both sets of laws: Louisiana's on I-12 and Mississippi's once they cross on I-20. Read the Louisiana vs Mississippi guide if you shop for a car between New Orleans or Jackson.
On a weekend drive from Baton Rouge to Jackson, pack a helmet if you ride, plan the route ahead of time, and expect the limit to change from 75 to 70 mph at the line.
| Topic | Louisiana | Mississippi |
|---|---|---|
| Max speed limit | 75 mph | 70 mph |
| Phone law | Hands-free law | Texting ban only |
| Learner's permit age | Permit at 15 | Permit at 15 |
| Car insurance | 15/30/25 | 25/50/25 |
| Car sales tax | 5% | 5% |
| Car inspection | Safety + emissions | No regular inspection |
| New resident deadline | 30 days | 30 days |
| Helmet law | All riders | All riders |
| Lane splitting | Not allowed | Not allowed |
Driving laws compared: Louisiana vs Mississippi
Louisiana vs Mississippi: Louisiana and Mississippi agree on learner's permit age (Permit at 15).
Max speed limit: Louisiana vs Mississippi
The rule is faster in Louisiana on max speed limit: Louisiana with 75 mph and Mississippi at 70 mph. Open-road interstates are posted at 75 mph in Louisiana and 70 mph in Mississippi. Heading away from New Orleans for Jackson, expect the limit to change following the border.
Phone law: Louisiana vs Mississippi
Mississippi is looser on phone law, with Louisiana with hands-free law and Mississippi with texting ban only. A call that is legal around New Orleans may not be close to Jackson once you cross.
Owning a car: the comparison
Louisiana vs Mississippi: Mississippi and Louisiana match on car sales tax: 5% and new resident deadline: 30 days.
Minimum car insurance requirements: Louisiana vs Mississippi
The rule is higher in Mississippi on car insurance, with Louisiana with 15/30/25 and Mississippi at 25/50/25. Louisiana is at-fault while Mississippi is at-fault. A policy written in New Orleans needs to be switched when you settle in Jackson.
Car inspection: Louisiana vs Mississippi
The law is stricter in Louisiana on car inspection: Louisiana with safety + emissions and Mississippi at no regular inspection. A car registered in Baton Rouge is inspected under Louisiana rules, even when driven to Gulfport.
Motorcycle compared: Louisiana vs Mississippi
Louisiana vs Mississippi: Louisiana and Mississippi match on helmet law: All motorcyclists and lane splitting (Not allowed).
Moving or buying across the border
- Louisiana vs Mississippi: relocating from Louisiana to Mississippi means 30 days to register the car and 60 days for the license switch.
- Moving from Mississippi to Louisiana: 30 days to register and 30 days for a license.
Louisiana vs Mississippi: FAQ
Which has the higher speed limit, Louisiana or Mississippi?
Louisiana (75 mph vs. 70 mph).
Where is the car tax smaller — Louisiana or Mississippi?
Louisiana and Mississippi charge the same state rate.
Do I need a helmet in both Louisiana and Mississippi?
Louisiana: All riders; Mississippi: All riders.