No, 15% window tint is illegal in Portugal under current regulations. The Regulamento de Homologação de Veículos (IMT, 2023) mandates a minimum 70% light transmittance for front side windows and windshields, while rear windows may not exceed 30% tint. Non-compliance risks fines up to €250 and mandatory removal.
Key Regulations for 15% Window Tint in Portugal
- Front side windows and windshields: Must allow ≥70% light transmittance; 15% tint violates this threshold.
- Rear windows: Maximum 30% tint permitted; 15% is technically compliant but requires factory certification.
- Medical exemptions: Only granted via Autoridade Nacional de Segurança Rodoviária (ANSR) with supporting documentation; 15% tint remains prohibited without approval.
Enforcement has tightened since 2024, with IMT collaborating with Guarda Nacional Republicana (GNR) for roadside checks. From 2026, digital verification systems will cross-reference tint levels with vehicle registries, increasing detection of non-compliant vehicles. Aftermarket tints must bear ECE 25 certification; uncertified films are automatically illegal. Vehicles registered post-2020 face stricter scrutiny due to EU-wide harmonization of visibility standards.