The academic regulations describe your degree programme. Including the subjects it consists of, the provisions on which the degree programme is based and the rules the students are subject to.
Your board of studies sets out the framework for your degree programme. Together with the director of studies, the board of studies plan, develop and handles the quality assurance of the degree programme. The board of studies also considers personnel cases such as applications for exemptions and credit transfer.
AU's rules and regulations are the formal description of the framework within which your degree programme and your university function. It is based on the ministerial orders which are frequently issued by the ministry.