According to established case law of the Federal Constitutional Court, it is inadmissible to distinguish between blue-collar and white-collar workers. Laws that previously privileged white-collar workers have been abolished for over twenty years. The same applies to collective agreements that formerly contained this distinction. Today, only collective agreements on social security funds in the construction industry still contain this distinction. The collective agreements are regularly declared generally binding by the responsible Federal Ministry of Labour and Social Affairs, even though they provide for a significant disadvantage for blue-collar workers. This volume deals with the associated constitutional violation.
