In addition to the restrictions set out in the 2010 Order, Scallop fishing around Wales is also regulated by byelaws of the former Sea Fisheries Committees.
Yn ogystal â’r cyfyngiadau yng Ngorchymyn 2010, rheoleiddir pysgota am gregyn bylchog ledled Cymru hefyd drwy is-ddeddfau’r hen Bwyllgorau Pysgodfeydd Môr.