Cyhoeddwyd y ddogfen bolisi gyffredinol ddiwethaf ar reoli gwastraff ymbelydrol, sefCommand Paper 2919, Review of Radioactive Waste Management Policy: Final Conclusions, yn 1995. Ers hynny, mae’r dirwedd o ran rheoliadau a pholisïau wedi newid yn sylweddol, yn enwedig yn sgil datganoli a chreu cyrff rheoleiddio newydd a’r Awdurdod Datgomisiynu Niwclear. Mae rhai rhannau o’r Papur Gorchymyn wedi cael eu diweddaru a’u disodli gan ddogfennau polisi newydd. At hynny, mae polisïau newydd wedi cael eu datblygu nad oeddent wedi’u cynnwys yn wreiddiol ym Mhapur Gorchymyn 2919.
The last overarching policy document on the management of radioactive waste,Command Paper 2919, Review of Radioactive Waste Management Policy: Final Conclusionswas published in 1995. Since then, the regulatory and policy landscape has changed significantly, not least with the advent of devolution and the creation of new regulatory bodies and the Nuclear Decommissioning Authority. Some parts of the Command Paper have been updated and replaced with new policy documents. Furthermore, new policies have been developed that did not originally feature in Command Paper 2919.