The purpose of the Reassessment Study of Feasibility is to uplift the efficiency of fiscal expenditures by objectively reassessing the validity of the project that falls under certain categories in accordance with Article 50 of the National Finance Act and Articles 21 and 22 of the Enforcement Decree of the Act in the course of executing a project to restrict the increase of unnecessary project costs.

The purpose of Reassessment of Project Plan is to review, based on the RSF analysis methodology, the appropriate project scale, total project cost, and efficient alternatives of the projects that do not go through a regular RSF in accordance with Article 49 Paragraph 2 of the Guidelines for Total Project Cost Management. (TPCM)

The purpose of reassessment of demand forecast is to enhance the efficiency of financial investment and prevent the waste of budgets in advance by closely managing the change in demand in large-scale public investment projects, which take a long period from planning to completion phase by phase, in accordance with Article 34 of the Guidelines for Total Project Cost Management (TPCM).

The purpose of Assessment of Design Modification is to increase the efficiency of fiscal investments by reviewing the validity and the appropriateness of the scale of the change in design in relation to the change in the design of the project and the change of the total project cost of which was requested after the construction began, in accordance with Article 58 of the Guidelines for Total Project Cost Management (TPCM).