[Background of Proposal]

- (Background) Although precise safety diagnoses are conducted every 5 years based on data collection (e.g., the structure and deterioration characteristics of storage tanks) and on-site inspections, the level of risk varies depending on the installation environment and maintenance of each tank. Therefore, differentiated management based on the diagnosis results is required. Furthermore, there is currently a lack of an evaluation system to determine whether the storage tanks have a safe structure against the impact of an earthquake.
- (Need for Government Intervention) As high-risk facilities age, it is necessary to secure public safety by implementing customized safety management, such as focused inspections based on the diagnosis results, and by establishing regulatory grounds for seismic performance evaluations in accordance with the Earthquake and Volcano Disaster Countermeasures Act.

[Regulatory Contents]

- Differentiating the diagnosis cycles based on the calculation of the comprehensive safety grade for LNG storage tanks, and establishing safety standards for seismic performance evaluations.