English: National Core Standards for Substance Misuse Services in Wales
Welsh: Safonau Craidd Cenedlaethol ar gyfer Gwasanaethau Camddefnyddio Sylweddau yng Nghymru
Subject: Gwasanaethau cymdeithasol
English definition: Published by the Welsh Assembly Government, May 2010.
Welsh definition: Cyhoeddwyd gan Lywodraeth Cynulliad Cymru, Mai 2010.