The Enforcement Rules for the Plant Variety and Plant Seed Act Article 21

Municipality or county/city competent authorities shall forward information on changes involving registered plant seed enterprises to the central competent authority, and shall submit compiled registration and registration change information of the previous year to the central competent authority before January 15 of each year.
中文原文 植物品種及種苗法施行細則第21條
直轄市及縣(市)主管機關應將登記種苗業者異動資料副知中央主管機關,並於每年一月十五日前將前一年之登記及變更登記資料彙報中央主管機關。

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