This legislative order establishes the formal transfer of administrative functions concerning radioactive substances from central government departments to the Welsh Office. The document, issued by the government of Great Britain, provides the legal framework for decentralizing regulatory authority. It delineates the specific powers shifted to the Secretary of State for Wales to ensure localized oversight of radioactive materials within the region.

Legal professionals and government archivists utilize this text as a primary source for understanding the devolution of environmental regulatory powers in the United Kingdom. It is recognized as a foundational administrative instrument for the specific legal history of Welsh governance.