The essential requirements are to be interpreted and applied in such a way as to take into account the state of the art and current practice at the time of design and manufacture as well as technical and economic considerations which are consistent with a high degree of energy efficiency and of health and safety protection.
Tá na ceanglais riachtanacha le léirmhíniú agus le cur i bhfeidhm ar shlí a chuirfidh i gcuntas an úrnuacht agus an cleachtas reatha tráth an deartha agus an mhonaraithe, chomh maith le gnéithe teicniúla agus eacnamaíocha atá comhsheasmhach le hardleibhéal éifeachtúlachta fuinnimh agus cosanta sláinte agus sábháilteachta.