Abstract
This Study aims to clarify the problem of deregulation through the relationship between Ordinance 3411 and Flood Hazard Area. As a result, we clarify the following. 1) When most of local authorities applies the Ordinance 3411, they do not assume Flood Hazard Area as Specified Area by Cabinet Order Article 8 Paragraph (1) Item(ii) (c). 2) Therefore, there is flood damage in developed area by Ordinance 3411. 3) There is a issue in Ordinance 3411 to address risk of flood too. Based on the above, we propose the Development Permit System to address risk of flood.