The President of the Austrian Federal Economic Chamber/Office of the Management Accountancy Authority (→ WKO)German text
The establishment of a branch office must be reported without delay.
Establishment of a branch office must be reported to the competent authority without delay. The competent authority has to maintain a register where the branch office is entered. If a branch office is closed, it has to be removed from the register.
section 35 of the Bilanzbuchhaltungsgesetz (BiBuG)
Please use the link "Parity Commission for Management Accountancy Professions"