1.Each Member State shall ensure that for each river basin district or for the portion of an international river basin district falling within its territory:
an analysis of its characteristics,
a review of the impact of human activity on the status of surface waters and on groundwater, and
an economic analysis of water use
is undertaken according to the technical specifications set out in Annexes II and III and that it is completed at the latest four years after the date of entry into force of this Directive.
2.The analyses and reviews mentioned under paragraph 1 shall be reviewed, and if necessary updated at the latest 13 years after the date of entry into force of this Directive and every six years thereafter.