Louisiana's front-window tint rule got noticeably more permissive in 2025: front side windows now need only 25% VLT, down from the 40% floor that applied for decades, while the rear numbers didn't move. This came from 2025 House Bill 119 (Act 143), which amended R.S. 32:361.1(C)(1) and took effect August 1, 2025 — a shop still quoting the old 40% front number is quoting a law that no longer exists.
Louisiana VLT limits by window
- Front side windows (driver + front passenger), all vehicles: at least 25% VLT (changed from 40% by 2025 HB 119, effective August 1, 2025).
- Side window behind the driver (rear side/door window): at least 25% VLT on passenger cars — unchanged by the 2025 law. Trucks, buses, trailers, motor homes, and multipurpose passenger vehicles (SUVs, vans) are exempt from this floor entirely — any darkness is legal there.
- Rearmost window (back glass): at least 12% VLT on passenger cars — also unchanged. Same multi-purpose-vehicle exemption applies: any darkness is legal on trucks, buses, motor homes, SUVs, and vans.
- Reflectance: capped at 20% luminous reflectance on every sun-screening device, on every window.
- Windshield: nonreflective tint only, limited to the top 5 inches.
Medical exemptions Louisiana allows a medical exemption under R.S. 32:361.2 for a documented condition certified in writing by a physician — ophthalmologists and dermatologists are specifically recognized certifiers for light-sensitivity conditions. The documentation has to stay in the vehicle.
Enforcement and penalties Driver penalties escalate with each offense: up to $150 for a first violation, $250 for a second, and $350 for a third or subsequent one. Louisiana also fines installers directly and separately from drivers — a shop that applies noncompliant tint faces a $1,000 fine for a first violation and $2,000 for a second, and a third violation can cost the installer their authorization to apply window tint in the state at all.
What this means when you're quoting a job Louisiana just moved the goalposts on the one number every shop has memorized — front side windows dropped from 40% to 25% in August 2025 — so a menu or quote template that hasn't been updated is now selling customers a darker legal film than it thinks it's allowed to, or worse, still quoting the old 40% as if it's the ceiling. The installer-specific fine schedule (up to $2,000 per violation, with a third offense risking the shop's ability to install tint at all) makes this a business-continuity issue, not just a customer-ticket risk. A [window tint shop software](/industries/tint) tool that pulls Louisiana's current 25%/25%/12% numbers — not the pre-2025 ones — protects both the shop's authorization and the customer.
Frequently asked questions
What is the current legal tint limit in Louisiana? Front side windows need at least 25% VLT (changed from 40% in August 2025). The side window behind the driver needs 25% VLT and the rearmost window needs 12% VLT on passenger cars — both unchanged by the 2025 law. SUVs, vans, trucks, buses, and motor homes are exempt from the rear-window floors entirely.
Did Louisiana's window tint law change recently? Yes. 2025 House Bill 119 (Act 143) lowered the front side window minimum from 40% VLT to 25% VLT, effective August 1, 2025. The rear-window numbers (25% side, 12% rearmost) weren't changed.
Can a shop get fined separately from the customer in Louisiana? Yes. Installers face their own fine schedule — $1,000 for a first violation and $2,000 for a second — separate from and in addition to the driver's citation, and a third violation can cost the shop its authorization to install tint.
Is any-darkness rear tint legal in Louisiana? Only on trucks, buses, trailers, motor homes, and multipurpose passenger vehicles like SUVs and vans. Passenger cars are held to 25% (side) and 12% (rearmost).
What's the reflectance limit in Louisiana? 20% luminous reflectance on every sun-screening device, on every window.
This is general information based on Louisiana's public statutes and reporting on R.S. 32:361.1 and 2025 HB 119 (Act 143), not legal advice — enforcement can vary and laws change over time, so confirm specifics with Louisiana State Police or a licensed attorney before you install, buy, or contest a citation.
Related
- State-by-state window tint laws (VLT limits) - Louisiana shop market + VLT summary - Window tint percentages: what VLT, 5%, 20%, 35% mean - Window tint laws by state: the 2025 reference