Definition: Build and delivery contracts
In this case, the non-government party is only committed to build an asset and deliver it to government, according to its requirements (normally checked by a third party). The asset will be used by government fully under its own responsibility. These contracts are normally treated as a “one-off” government capital expenditure that may nevertheless be recorded on an accrual basis under some conditions. This does not exclude an ancillary provision of services (that can be separately specified and which are treated adequately in national accounts). Such services are strictly related to the assets, such as technical maintenance work.
Eurostat, "Long term contracts between government units and non- government partners (Public-private-partnerships)"; (2004 edition), Office for Official Publications of the European Communities, 2004, Luxembourg