Question juridique clé
Whether the communes had standing to challenge the cantonal norm
Solution extraite
Yes. Municipalities may invoke communal autonomy under Art. 89(2)(c) LTF when they allege an infringement and are affected as public entities.
Motifs extraits
It is sufficient that the communes allege a breach of autonomy and are touched in their public-law sphere; actual autonomy and its breach are merits issues.