Regional Plan Act Article 11

After a regional plan is announced and implemented, for the township plan, street plan and special zone plan that should be prepared, or the existing plans that should be altered according to the regional plan, the local competent authority of urban plan shall finish preparation or alteration procedure within the specified time limit. Otherwise, the upper-level competent authority may prepare or alter the plans in stead.
中文原文 區域計畫法第11條
區域計畫公告實施後,凡依區域計畫應擬定市鎮計畫、鄉街計畫、特定區計畫或已有計畫而須變更者,當地都市計畫主管機關應按規定期限辦理擬定或變更手續。
未依限期辦理者,其上級主管機關得代為擬定或變更之。

English translation for reference only; the Chinese text prevails. Not legal advice.