Cyhoeddwyd y Papur Gwyrdd ym mis Mai 2012 a gofynnwyd am farn ar y cynigion fel rhan o ymarfer ymgynghori 12 wythnos a ddaeth i ben ar 31 Gorffennaf 2012. Roedd y Papur Gwyrdd yn cynnwys nifer gynigion ar gyfer deddfwriaeth Cymru, sef:
The Green Paper issued in May 2012 and views were invited on the proposals as part of a 12 week consultation exercise which ended on 31 July 2012.  The Green Paper included a number of proposals for Welsh legislation, namely: