Question juridique clé
Whether the municipality had standing to appeal under Art. 57 USG and Art. 89 BGG against the annulment of the cost allocation.
Solution extraite
The municipality was not sufficiently and specifically affected in a way that would justify standing; the appeal interest was only the ordinary application of law and the financial impact was case-specific.
Motifs extraits
Municipal standing requires a qualified impact on central public interests beyond the individual case. The contested costs arose from a one-off, site-specific noise investigation and did not create a broader, precedent-setting financial burden for the municipality.