FNE Pays de la Loire, part of France Nature Environment, is an association dedicated to protecting and preserving the natural environment in the Pays de la Loire region. Their mission is to promote awareness, conduct investigations, and provide training on environmental issues. They offer various services, including advisory commissions, public consultations, and educational programs.

They also publish informative bulletins, press releases, and exhibitions to raise awareness about biodiversity, climate change, waste management, and more. One of their significant achievements includes holding SNCF Réseau accountable for the destruction of protected species' habitats. In a landmark ruling, SNCF Réseau was fined a substantial amount for their actions, setting an important precedent for all infrastructure managers.

FNE Pays de la Loire strives to ensure that future interventions on linear infrastructures are planned in advance and take into account the appropriate periods to minimize disruption to wildlife. This decision highlights their commitment to protecting the environment and promoting responsible practices among different stakeholders