The TPCM applies to projects that are: implemented by central or local governments (or private actors relying on public funding), have a construction period of two years or longer, and incur costs of at least KRW 50 billion (about USD 47.5 million) in the case of civil engineering projects or at least KRW 20 billion (about USD 19 million) in the case of architectural projects. Under the TPCM, the project is not allowed to increase construction size through design modification (unless it is inevitable), construction costs are not interchangeable between project phases or between construction units, and any project adjustment deemed inevitable must be subject to consultation between the ministry in charge of the project and the MOSF. The MOSF is responsible for conducting the PFS and it is evaluated by the PIMAC within the KDI (Public and Private Infrastructure Investment Management Center within the Korea Development Institute), an independent evaluation authority established in 2005.