(5)Voluntary agreements and decisions on the planning of production in the milk and milk products sector have been authorised for recognised producer organisations, their associations and recognised interbranch organisations by Commission Implementing Regulation (EU) 2016/559note and for cooperatives and other forms of producer organisations in the milk and milk products sector by Commission Delegated Regulation (EU) 2016/558note for a period of six months starting on 13 April 2016. That period was extended by Commission Implementing Regulation (EU) 2016/1615note.