Some political parties already have quotas in their statutes for a long time (Die Grünen (Green Party) - 50%; SPD - 30% I think).
Since Januar 2016 gender quotas for the supervisory council of the 106 largest market-listed companies were introduced. For restaffing in the supervisory council there is a quota of 30% for both gender (or the position has to be left vacant).
Here an "official" article by the Federal Minestry for Family Affairs, Senior Citizens, Women and Youth ["Federal Minestry for everybody except men" ;-) ]:
