CORTEA: Measures and actions to improve air quality

In 2025, CRMT reached major milestones in the energy transition of transport, with the type approval of the first BioNGV retrofit kit for Euro VI coaches, the development of hydrogen engine testing, and the deployment of pollutant emissions measurement campaigns across France and Europe. These advances confirm CRMT’s role as a key player in innovation and transport decarbonization. 

On the occasion of the National Air Quality Day, CRMT reaffirms its commitment to cleaner air. With its expertise in alternative fuel engines and emission measurement, the company takes concrete action to reduce transport-related pollution. 

What if you could decarbonize your coach fleet without buying new vehicles?
Discover how BioCNG retrofit cuts emissions while keeping operating costs under control.

The first Euro VI Diesel school coach retrofitted to BioGNV was inaugurated on April 11 in Sillé-le-Guillaume—an innovation led by CRMT, Transdev, the Pays de la Loire Region, and GRDF. This concrete, sustainable, and scalable solution represents a major step forward in the decarbonization of school transport.