The CPV codes adopted by the regulations were defined by Regulation (EC) No 2195/2002 of the European Parliament and of the Council as amended from time to time.
Diffiniwyd codau'r GGG sydd wedi’u mabwysiadu gan y rheoliadau gan Reoliad (CE) Rhif 2195/2002 Senedd Ewrop a’r Cyngor fel y’u diwygiwyd o bryd i’w gilydd.