Cafodd Bil Adennill Costau Meddygol ar gyfer Clefydau Asbestos (Cymru) ei gyflwyno i Gynulliad Cenedlaethol Cymru gan Mick Antoniw AC ar 3 Rhagfyr 2012. Cafodd y Bil ei basio wedyn gan y Cynulliad ar 20 Tachwedd 2013.
The Recovery of Medical Costs for Asbestos Diseases (Wales) Bill was introduced into the National Assembly for Wales by Mick Antoniw AM on 3 December 2012. The Bill was subsequently passed by the Assembly on 20 November 2013.