Bydd y profion yn cael eu gweithredu ar sail statudol am y tro cyntaf ym mis Mai 2013.

BBC: Datganiad ar lythrennedd

The parties were back in court on June 20 while the Appellate Division of state Supreme Court considered the TRO.

FORBES: New York Fight Keeps Court Dockets Smoking

Ymhlith y teyrngedau a dalwyd i Ieuan Wyn Jones oedd un AC Plaid Cymru Dafydd Ellis Thomas, a wnaeth ganmol penderfyniad Mr Jones i arwain Plaid Cymru i mewn i lywodraeth am y tro cyntaf.

BBC: Dadl Plaid Cymru