The Treasury has produced New value for money assessment for PFI: Guidance for NHS build schemes: overview . This builds on the introduction of Treasury's new approach to appraising the value for money of procurement through the PFI in August 2004. It should be read in conjunction with more detailed guidance, New value for money assessment for PFI: guidance for NHS build schemes: detailed guidance on the value for money assessment at outline business case stage and the accompanying spreadsheet proforma for running the quantitative model. (DH - publications)