If a landfill site operator wishes to cancel their registration, they should contact their Customer Relationship Manager by email ldtmailbox@wra.gov.wales.
Os yw gweithredwr safle tirlenwi am ganslo eu cofrestriad, dylent gysylltu â'u Rheolwr Cysylltiadau Cwsmeriaid drwy e-bost posttgt@acc.llyw.cymru.