Cafodd Rheoliadau Mangreoedd etc Di-fwg (Cymru) (Diwygio) 2012, a fyddai'n diwygio Rheoliadau 2007 er mwyn cynnig eithriadau i berfformwyr dan amgylchiadau penodol, eu gosod ar 18 Gorffennaf. Cyn iddynt gael eu trafod, cyhoeddwyd y byddai'r Pwyllgor Menter a Busnes a'r Pwyllgor Iechyd a Gofal Cymdeithasol yn casglu tystiolaeth gan y rhai dan sylw ar y mater hwn, er mwyn cynhyrchu adroddiad terfynol ar eu casgliadau.
The Smoke-free Premises etc. (Wales) (Amendment) Regulations 2012, which would amend the 2007 Regulations to provide an exemption for performers in certain circumstances, were laid on 18 July. Prior to them being debated it was announced that the Enterprise and Business Committee and the Health and Social Care Committee of the Assembly would take evidence from all interested parties on this matter, with a view to producing a final report on their conclusions.