The "Construction Career Up System (CCUS)" is to create an environment where skilled construction workers can register and accumulate their work records (employment history) and qualifications, etc., and receive treatment according to their experience and ability. is a common system in the construction industry. By using the IC card issued to registrants for entrance and exit, site management is streamlined, and reports such as worker lists can be easily created. Approximately 500,000 skilled workers have been registered so far, and public-private united efforts such as model construction for national and local governments using CCUS and cooperation with Kentaikyo have started. .