3.31 The NHS body would generally be expected to update and refine the CPAM between the submission of the OBC and FBC as necessary. Changes are most likely to be required in respect of:
• changes in inflation assumptions (where the envisaged construction period is later than that envisaged in the OBC);
• changes in respect of risks that may have solidified or be no longer relevant; and
• changes in timescales due to unforeseen delays in procurement.
3.32 The CPAM may need to reflect minor changes where the preferred private sector partner provides a different quantity or quality of services than that originally envisaged. It is important, however, to distinguish between changes in requirements and the results of genuine innovation demonstrated by the private sector partner. The NHS body should not seek to "cherry pick" innovative ideas and build them into its CPAM.
3.33 In certain circumstances, major changes may occur between the submission of the OBC, the selection of the preferred bidder and the submission of the FBC. Where such changes occur, the NHS body should ensure that its CPAM remains a valid comparison.
3.34 The following scenarios represent examples of changes since OBC/selection of preferred bidder which should be reflected in the FBC:
• where there have been changes to the functional content of the scheme, e.g. facilities have been added or removed;
• where the risk allocation has changed as a result of negotiations;
• where developments have impacted on the solution proposed (e.g. planning permission has been received, thus allowing, say, a new build solution rather than a refurbishment).
3.35 As a general rule, changes are more likely to be required when there is a long lead time between OBC and FBC submission.