3.18 From OBC onwards, the CPAM represents a benchmark against which the value for money of a potential PPP solution can be assessed. It can therefore be used to inform decision making upon the receipt of tenders from potential private sector partners.
3.19 It is at this stage that the CPAM is effectively "frozen", subject to the changes considered in paragraphs 3.31 to 3.35. However, project managers would be required to carry out further work on the CPAM where variant bids are received from potential PPP partners.
3.20 A variant bid proposes a solution that is outside the scope of that detailed in the output specification. Typically, it would deliver a different functional content or meet a different risk allocation matrix to that specified in the ITN.
3.21 When a variant bid is received, the NHS body should ensure that it assesses the value for money of that potential solution. It should do this by working up further detail on the CPAM and deriving a cost to the public of funding such a scheme. Importantly, it should also ensure that the bid still has the potential to satisfy service requirements.
3.22 Should the variant bid be selected as the preferred PPP solution, the changes made to the CPAM must be reflected in the FBC.