http://www.legislation.gov.uk/wsi/2007/856/article/2/made/welshGorchymyn Deddf Galluedd Meddyliol 2005 (Cychwyn) (Cymru) 2007cyKing's Printer of Acts of Parliament2014-12-01GALLUEDD MEDDYLIOL, CYMRUCychwyn2Yn ddarostyngedig i erthyglau 3 a 4, daw adrannau 30 i 34 (ymchwil) o'r Ddeddf i rym ar 1 Hydref 2007.