Transitional provisions
Article 4
1. Member States shall ensure that their data collection arrangements allow the data to be reported according to the content and format defined in the Annex for the reporting year 2017 at the latest. Where Member States have identified substantial difficulties in the alignment of data collection arrangements or raised concerns about the relevance or necessity of certain data categories, the need for adjusting the Annex shall be assessed. 2. Where, during the transitional period, Member States cannot provide the data according to the content and format as defined in the Annex, they shall report data in a closest available format and indicate discrepancies when submitting the data.