3.23 The principal purpose of the FBC is to make the case for the preferred funding solution. The comparison between the PPP solution and the CPAM is key to the demonstration of quantitative and qualitative value for money.
3.24 At this stage of procurement, the main task for the project manager is to ensure that the CPAM represents a valid comparison to the PPP option. The CPAM presented in the FBC should be up to date and reflect any changes made to the scope or functional content of the scheme since the OBC submission. The assumptions behind the CPAM should also be fully demonstrated.
3.25 The following sections outline the development of the CPAM up to and including the submission of the FBC:
• paragraphs 3.26 to 3.30 assess the overall criteria upon which the CPAM should be based;
• paragraphs 3.31 to 3.35 review possible reasons why the CPAM may be changed between the selection of the preferred bidder and the FBC stage;
• paragraphs 3.36 to 3.39 outline how the CPAM should be presented within the FBC.