Nancy's Charter for Trees ('La Charte de l'Arbre de la ville de Nancy') was first signed in 1996 and renewed in 2013. The Charter accentuates the legal protection of trees in the heart of the city and strengthens tree and plant diversity. In 2013, the new version of the Charter made it possible to engage diverse urban policy actors and to adapt to new legal, urban, ecological and social developments, while still in line with the 1996 Charter.