Louisiana

Truck speed limits in Louisiana: Highway 75 mph, Rural 75 mph, Urban 65 mph. Same as passenger vehicles on most routes. Left lane: Updated August 2025: prohibits traveling in left lane while going slower than posted speed or impeding traffic.

No chain law; not applicable due to climate Construction: Year-round construction; hurricane season (June-November) can disrupt routes.

Bridge weight restrictions on older bridges; Atchafalaya Basin Bridge has specific regulations; standard oversize/overweight permits

Standard federal HOS enforcement; Louisiana State Police CMV units ELD: Full federal ELD mandate compliance required.

Moderate; LSP conducts roadside inspections on I-10, I-20, and I-49 Drug testing: Federal DOT drug testing requirements apply.

Adequate along major interstates; limited in Baton Rouge and New Orleans metro areas

For the most current trucking regulations in Louisiana, visit the official enforcement page at https://www.dotd.la.gov/Inside_LaDOTD/Divisions/Multimodal/Freight/Pages/default.aspx.