the government and the National Assembly of the Republic of Korea enacted and proclaimed the 'Special Act on the Safety Control of Public Structures' (hereinafter referred to as the 'Special Act') through the legislation process by Assembly members on January 5, 1995, in order to prevent disasters and calamities through facility safety inspections and proper maintenance. But nevertheless the result of the 'Special Act on the Safety Control of Public Structures' clearly exist, methodical analysis and effect of 'Special Act on the Safety Control of Public Structures' have not proposed since last 20 years. So question about the infrastructure of safety is brought up consistently. After that, the government has been creating new trends of facility maintenance since it deeply realized the significance of systematic inspection and maintenance of major public structures.