Is 15% Window Tint Legal in Belgium After the 2026 Law Changes?

No, 15% window tint is illegal in Belgium under the Royal Decree of 1 December 1975, which mandates a minimum 70% light transmittance for front side windows and windshields. Police enforcement actively checks compliance, with fines up to €137.50 for violations. The 2026 EU Vehicle General Safety Regulation may tighten these standards further.


Key Regulations for 15% Window Tint in Belgium

  • Front side windows and windshields must maintain at least 70% light transmittance (VLT), making 15% tint non-compliant.
  • Rear side windows and rear windshields may have darker tint (down to 30% VLT) but require manufacturer certification or a conformity certificate.
  • Medical exemptions exist but require prior approval from the FOD Mobiliteit en Vervoer (Federal Public Service Mobility and Transport) with supporting documentation.

Local authorities, including rijkswerven (traffic police), conduct roadside checks using portable light transmittance meters. Non-compliance risks immediate fines and mandatory removal. The 2026 EU regulation may introduce stricter enforcement mechanisms, including digital compliance verification systems. Always verify tint specifications with an authorized testing center before installation.