Yes, 15% window tint is legal in the United Kingdom, but only under strict conditions. The Road Vehicles (Construction and Use) Regulations 1986 and the Road Traffic Act 1988 govern window tinting, with local authorities enforcing compliance. Police may conduct roadside checks using light transmittance meters, and non-compliance can result in fines or MOT failures.
Key Regulations for 15% Window Tint in United Kingdom
- Front Side Windows: Must allow at least 70% light transmittance (VLT). A 15% tint reduces this to 15%, making it illegal for front side windows.
- Front Windscreen: Must maintain 75% VLT; any tint, including 15%, is prohibited.
- Rear Windows: Permitted only if the vehicle has factory-fitted side mirrors on both sides. Even then, 15% tint may exceed local authority discretionary limits.
Recent 2026 consultations by the Department for Transport propose stricter enforcement, including mandatory tint certification for commercial vehicles. The Driver and Vehicle Standards Agency (DVSA) has signaled increased roadside testing to curb non-compliant tinting. Vehicles registered before 2003 face additional scrutiny due to older manufacturing standards.
Non-compliance risks extend beyond fines. Insurance policies may invalidate claims if tinting contributes to an accident. MOT testers will fail vehicles with illegal tinting, requiring rectification before re-testing. Exemptions exist for medical conditions, but these require prior approval from the DVLA and documented evidence.