Under section 16 of the Commons Act 2006, land registered under the Commons Registration Act 1965 may be deregistered or exchanged.
O dan adran 16 o Ddeddf Tiroedd Comin 2006, gellir dadgofrestru neu gyfnewid tir comin a gofrestrwyd o dan Ddeddf Cofrestru Tir Comin 1965.