The requirement in Article 20 is for Member States with capacity mechanisms to prepare and submit an Implementation Plan containing information about its measures under certain pre-defined headings relating to principles and objectives for market operation. These principles and objectives are listed in Articles 3 and 20. The requirement to prepare such a Plan applies to Ireland as the Single Electricity Market, the all island wholesale electricity market, includes a capacity mechanism. The Implementation Plan for Ireland details the various reforms and measures relevant to those principles and objectives. The Plan provides information about measures that are both ongoing and scheduled for future implementation, along with envisaged timelines for implementation. It should be noted that this information already available in the public domain in various CRU, Eirgrid, SONI and Single Electricity Market Committee (SEMC) papers and in Government Policy documents.