Since 2015, the Carrefour mondial de l’accordéon has adopted a sustainable development policy. Over the years and from one edition to another, concrete actions have been taken to reduce the ecological impact of the festival. Here are some actions taken:

• Installation of a water fountain on the exterior site of the Accordion Museum. A fountain will also be installed by the City of Montmagny near Place Montel;
• Reusable beer glasses on consignment will be available at event bars;
• Acceleration of efforts to recycle materials and compost on sites;
• The global accordion crossroads encourages local suppliers and local purchases.

Single-use plastic (straws, glasses, water bottles) will be phased out in 2023, then completely banned in 2024.