The decree n°2017-888 dated 6 May 2017 related to class action and action for the recognition of rights contained in titles V and VI of the law n°2016-1547 of 18 November 2016 on modernisation of 21st century justice was published in the Official Journal on 10 May 2017 and entered into force on 11 May 2017. The decree defines the applicable procedural rules, before the judicial court and the administrative court, to the class actions governed by the law on modernisation of 21st century justice.