High-visibility protective clothing must comply with EN ISO 20471, the European standard for high-visibility clothing. This standard is divided into classes, depending on the degree of visibility/reflectivity.
High-visibility clothing is available in three different colors:
Rijkswaterstaat, the Dutch government authority which is part of the Ministry of Infrastructure and the Environment, sets additional color requirements.
According to EN ISO 201471, high-visibility work clothing is classified in three different classes, which each indicate the protection level of the reflective clothing for different situations.