The claimant must have been registered as the operator of the site at the time of the disposal, and the claimant must have either made the disposal or permitted the disposal to be made.
Bod yr hawlydd wedi'i gofrestru fel gweithredwr y safle ar adeg y gwaredu, a bod yr hawlydd naill ai wedi gwneud y gwarediad neu wedi caniatáu'r gwarediad.