43. For all projects signed since 30th September 2002, the refinancing provisions should clearly state the method of calculation for refinancing gains and the sharing mechanism which should be 50:50 between the Contractor and the Authority as mandated by the Standardisation of PFI contracts issued in July 2002 and subsequent versions thereof.
44. For all agreements signed before 30th September 2002, projects should refer to the Code of Conduct issued in October 2002 (see link below). This is a voluntary code, which enables the private sector to share any refinancing gain with the public sector. This should be at least equal to a 30% share as determined under the OGC Revised Guidance.
http://www.hm-treasury.gov.uk/media/924E0/PPP_Refinancing_Code_of_Conduct.pdf