Major projects at Sellafield are still "significantly delayed" and expected to overrun by nearly £1billion, according to a new report.
The Public Accounts Committee (PAC) says that the Nuclear Decommissioning Authority (NDA) is failing to review why 14 schemes are running into difficulties and has questioned the authority's ability to clean-up the west Cumbrian site.
While the latest report outlines serious concerns, it recognises improvements have been made and "significant milestones reached" since the committee last examined progress in March 2015.
Sir Geoffrey Clifton Brown MP, Deputy Chair of the Public Accounts Committee said: "The Government's oversight of the NDA’s performance could and should be much better, particularly on projects at Sellafield that cost a considerable amount of public money."
The NDA says it welcomes the report and will be responding in full to its recommendations.