In the event of legal disputes related to .at domains, a wait status can be requested. This status ensures that no change of domain holder can be performed for the duration of the dispute. 

Generally speaking, there is no arbitration procedure for .at domains. If the out-of-court settlement of .at domain disputes fails, the parties can go before the ordinary courts. 

If you do not request a wait status for the .at domain before you file a suit against the domain holder, there is a risk that the current domain holder will transfer the domain to someone else during the legal dispute. As a result, the legal action would become obsolete and would need to be filed against the new domain holder (who could, however, transfer the domain again, if no wait status is requested.)