Use of an unauthorised site in Wales might lead to you having to pay Landfill Disposals tax charged by weight at the unauthorised disposals rate.
Gallai defnyddio safle anawdurdodedig yng Nghymru arwain atoch chi'n gorfod talu Treth Gwarediadau Tirlenwi a godir wrth y pwysau ar y gyfradd gwarediadau anawdurdodedig.