A high-level plan was produced in January 2005. This plan covers HM Treasury and its agencies, the Office of Government Commerce (OGC) and the Debt Management Office (DMO). The plan is publicly available on HM Treasury's website on the following link:
http://www.hmtreasury.gov.uk/about/information/foi_disclosures/2006/foi_eurodeptplans_2006.cfm