The Nordic certification system for road marking materials, NordicCert, aims at testing and certifying road marking materials with respect to the durability of the products. This allows for purchasers of road marking materials to set requirements on product quality in their procurements and contracts. Product certification is based on monitored and documented performance measurements of material samples applied on test fields on public roads.  The certification system includes two test sites with different characteristics with respect to climate and winter maintenance: one in Norway, representative of the conditions in Iceland, Norway and Sweden, and one in Denmark, representative of the conditions in Denmark. The certification system includes road marking materials for road markings in categories with respect to colour (white, yellow), type (type I, type II, antiskid, inlaid, temporary, and materials for hand application and with enhanced durability) and thickness (0.4, 0.6, 1.5, 3 and 5 mm).

The first test fields were established in 2015. New rounds of material application on the test fields have been carried out yearly since then. At present (January 2024), about 625 material from 25 manufacturers have been applied at the Nordic test sites.

The materials are followed-up for two years, with performance measurements of the coefficient of retroreflected luminance RL under dry and wet conditions, the luminance coefficient under diffuse illumination Qd, the friction, the chromaticity in daylight, and the chromaticity of retroreflected light (yellow materials, only). Materials are certified in relation to the number of wheel passages they will stand, with preserved functionality. Depending on the traffic flow, the position in the lane and the exposure time, different roll-over classes (P0–P6, corresponding to ≤50 000–2 000 000 wheel passages, defined by EN 1824) will be reached. At the Danish test site, P-class P6 is typically reached after two years, while at the Norwegian-Swedish test site P-class P5 is reached after two years.

Certificates are distributed to the respective manufacturer. Lists of certified materials can be found here (Denmark) and here (Iceland/Norway/Sweden).

For more information about the certification procedure, please see the instruction here.

The results of the follow-up performance measurements are published in public reports, which can be found here.

If you are interested in participating in the Nordic road trials, please sign up for our email list by sending an email to carina.fors@vti.se. An invitation for participation is usually sent out in May every year.