Which cantonal disability insurance office had territorial competence to issue the challenged decision?
The Valais AI office remained competent to conclude the revision procedure; the Vaud AI office was not competent to issue the decision.
Under Art. 55 para. 1 LAI and Art. 40 para. 1 and 3 RAI, the office that handled the claim remains competent throughout the procedure. The revision had been opened and conducted by the Valais office, which therefore had to close it despite the appellant's later domicile in Vaud.