The governing coalition planned to pass the Building Energy Act, known as the heating law, on 7 July 2023. In late June, the coalition agreed on changes, and a synopsis of 94 pages followed on 30 June. A member of parliament, Thomas Heilmann of the CDU, applied to the Federal Constitutional Court. On 5 July 2023, the court ruled that the second and third readings could not take place that week. It doubted that the members could exercise their right to deliberate, given the strong compression of the timetable and the complexity of the bill.