Only carbon stored by new woodland creation can be sold, and projects must register before work starts on site (tree planting, ground preparation, deer fencing etc.).
Dim ond carbon sy'n cael ei storio drwy greu coetir newydd y gellir ei werthu, a rhaid i brosiectau gofrestru cyn dechrau gwaith ar y safle (plannu coed, paratoi tir, ffensys ceirw etc.).