The Administrative Council in coordination with the works council (Betriebsrat) shall propose a school calendar for Board approval at least one-and-a-half years prior to the beginning of each school year. The proposed calendar shall provide for holiday periods in the fall, over the year-end holidays, in the winter, and in the spring and shall accommodate all German legal holidays. The academic school year shall typically begin by the end of August and finish by the end of June.