Is 35% Window Tint Legal in Portugal After the 2026 Policy Reforms?

No. Portugal’s Regulamento de Segurança Rodoviária (Decreto-Lei n.º 144/2019) prohibits window tinting below 70% light transmittance for front side and rear windows, rendering 35% illegal. Non-compliance risks fines up to €250 and mandatory removal. The Autoridade Nacional de Segurança Rodoviária (ANSR) enforces these rules, with 2026 inspections targeting non-compliant vehicles.


Key Regulations for 35% Window Tint in Portugal

  • Light transmittance threshold: Front side and rear windows must allow ≥70% of light to pass; 35% tint fails this requirement.
  • Front windshield: Any tinting is strictly prohibited, regardless of percentage.
  • Penalties: Fines range from €120–€250, with vehicles failing roadworthiness tests until corrected. ANSR conducts random checks, particularly in urban areas like Lisbon and Porto.

Note: Medical exemptions exist but require prior approval from Direção-Geral da Saúde (DGS) with documented justification. Aftermarket films must meet NP EN 14285:2020 standards, verified by certified installers. Vehicles registered post-2020 face stricter scrutiny due to EU vehicle safety directives.