The Commission shall, by 31 December 2019, adopt a delegated act in accordance with Article 23, supplementing this Directive by establishing an optional common Union scheme for rating the smart readiness of buildings.
Déanfaidh an Coimisiún, faoin 31 Nollaig 2019, gníomh tarmligthe a ghlacadh i gcomhréir le hAirteagal 23, lena bhforlíontar an Treoir seo trí chomhscéim roghnach an Aontais a bhunú chun ullmhacht chliste foirgneamh a rátáil.