The H2MA project, co-funded by the European Union, is working to accelerate the transnational deployment of green hydrogen mobility infrastructure in the Alpine region to reduce CO2 emissions and promote the transition to low-carbon transport. With eleven partners from five EU countries, including Klimapartner Südbaden e.V., cooperation mechanisms and strategies will be developed and tools and resources gathered to jointly plan and test zero-emission hydrogen routes in the Alps. In this way, H2MA should help to improve the governance of green hydrogen mobility, promote the acceptance of green hydrogen for heavy-duty transport, unlock green funding and strengthen the cooperation framework between public authorities and companies in this area.