Dyma amlinelliad o'r camau sy'n cael eu cynnwys yn y polisi, cyn i CGD gael ei ystyried yn bosibilrwydd yng Nghymru:Mae'n rhaid i'r rhai sydd â diddordeb gynnal trafodaethau gyda RWM ynghylch cynnal CGD.Pe byddai'r rhai sydd â diddordeb am wneud ymholiadau pellach yna byddai angen iddynt ddechrau ar drafodaethau ffurfiol a ffurfio Partneriaeth Gymunedol i gynrychioli y gymuned ehangach.Gallai'r trafodaethau hyn bara hyd at ugain mlynedd, ond gallai'r gymuned dan sylw dynnu ei chynnig yn ôl unrhyw bryd yn ystod y cyfnod hwnnw.Cyn gwneud penderfyniad terfynol ynghylch cynnal CGD, byddai angen mesur cefnogaeth y cyhoedd yn y gymuned dan sylw.Byddai'n ofynnol i CGD gael caniatâd cynllunio, trwydded diogelwch gan y Swyddfa Dros Reoli Niwclear a'r trwyddedau amgylcheddol perthnasol gan Cyfoeth Naturiol Cymru.
Here is an outline of the steps included in the policy, before a GDF could be considered a possibility in Wales:Interested parties must seek discussions with RWM about hosting a GDF.If the interested party wanted to pursue their interest then they would need to enter into formal discussions and a Community Partnership would be formed to represent the wider community.These discussions could last for up to twenty years, during which time the Community Partnership could withdraw from the process at any time.Before a final decision about siting a GDF is taken, a test of public support in a potential host community would be required.A GDF in Wales would require planning permission, a safety and security permit from the Office for Nuclear Regulation (ONR) and the relevant environmental permits from Natural Resources Wales.