Generally, if administrative authorities issue a decision unfavourable for the economic operator, such a decision can be appealed against to a higher instance authority. When all administrative appeal measures have been exhausted, an economic operator who is not satisfied with the outcome of the appeal procedure may file a complaint against such a decisions or order with a competent provincial administrative court.
Disputes with clients or other economic operators are not subject to review by state administration authorities and are handled as described in detail in civil law provisions.