Food Administration Act Article 5-1

For the security and stability of the food supply, the Competent Authority shall stockpile rice based on the average domestic consumption of the preceding year. This stockpile must be maintained at a level no lower than the safety rice stock level sufficient for a designated period, as determined by an order promulgated by the Executive Yuan.
中文原文 糧食管理法第5-1條
主管機關為糧食供應之安全穩定,應儲備稻米前一年國內糧食平均消費量不得低於一定期間內之安全存量。
稻米一定期間安全存量標準,由行政院以命令定之。

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