O ran effaith yr OS yng Nghymru, ei unig effaith yw gwneud cywiriad technegol i'r diffiniad o wastraff yn adran 336 o Town and Country Planning Act 1990, sy'n gymwys i Gymru ac i Loegr. Mae angen gwneud y cywiriad er mwyn sicrhau bod y llyfr statud yn parhau’n gyfredol.
In terms of the SI’s impact in Wales, it only goes as far as to make a technical correction to the definition of waste in section 336 of the Town and Country Planning Act 1990, which applies to both England and Wales. This correction is required to ensure that the statute book is up to date.