Regulation 12 inserts new requirements for the person carrying out the building work to provide information to the owner with regards the systems for on-site generation of electricity.
Mae Rheoliad 12 yn mewnosod gofynion newydd i'r person sy'n ymgymryd â'r gwaith adeiladu roi gwybodaeth i'r perchennog am y systemau ar gyfer cynhyrchu trydan ar y safle.