Ratepayers will continue to be able to challenge list alterations made by valuation officers to reflect qualifying and other works, through the existing appeals process.
Bydd talwyr ardrethi yn parhau i allu herio newidiadau i restrau a wneir gan swyddogion prisio er mwyn adlewyrchu gwaith cymwys a gwaith arall, drwy'r broses apelio bresennol.