Question juridique clé
Whether the pension fund had standing to appeal the IV decision under Art. 49(4) ATSG.
Solution extraite
Yes. A pension institution may appeal an IV decision on entitlement or degree of disability because the IV assessment is in principle binding and directly affects its benefit liability.
Motifs extraits
The court reaffirmed prior case law that Art. 49(4) ATSG grants standing to occupational pension institutions whose obligations are directly affected. The lower court's distinction between general and coordination-related affectedness had no statutory basis.