23.Chapter 4 makes amendments to the Radioactive Substances Act 1993 (c.12) which will allow the Environment Agency, the Scottish Environment Protection Agency and the chief inspector in Northern Ireland to use a streamlined and simplified process in dealing with applications for the transfer of radioactive discharge authorisations when there is a change of operator at a nuclear site. The changes will improve the effectiveness and efficiency of regulation whilst maintaining the robustness of the discharge authorisation process.