Library / Midstream and Downstream Decommissioning and Abandonment Regulations 2023
Midstream and Downstream Decommissioning and Abandonment Regulations 2023

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contained within it, will be re-used, recycled, or scrapped,
(iii) details of any cleaning or removal of waste materials, including
cleaning methods, cleaning agents and disposal of residues,
(iv) a clear outline of how the disposal of any radioactive material,
including Low Specific Activity (LSA), and Naturally Occurring
Radioactive Material (NORM), will be addressed,
(v) water level (clearance) above any remaining waste of concern, and
(vi) predicted degradation, movement, and stability of any remains ;
(g) an environmental evaluation study report, supporting the chosen
decommissioning and abandonment option ;
(h) a comparative assessment of alternative decommissioning and
abandonment options, or otherwise disposal options, which shall analyse
the impacts of considered listed options against the following criteria —
(i)  safety,
(ii)  environmental,
(iii)  technical, including risks of major project failure,
(iv)  societal,
(v)  economic, and
(vi)  security,
based on qualitative and quantitative assessment and clearly indicating the
rationale for the chosen decommissioning and abandonment option or
otherwise disposal options ;
(i)  report of any required interested party consultations in compliance
with this or any other regulation ;
(j) letters of support from named partners where applicable,
demonstrating their agreement with the proposed decommissioning and
abandonment approach ;
(k) estimate of the cost of the proposed measures, which shall include
details of the category of expenditures (based on best estimate, global
benchmark with similar project and the indication of potential deviations in
the estimate that may account for any difference in the final outcome at
implementation) ;
(l) schedule, indicating details of the decommissioning and abandonment
time scale for the proposed option, including a schedule showing the dates
at which the various stages of the decommissioning and abandonment are
expected to start and finish ;
(m) details of the arrangements by which the licensee will keep the
Authority informed of the progress of decommissioning and
abandonment ; and
(n) a description of the post-decommissioning and abandonment
monitoring and maintenance phase, including steps to be taken to ensure