Half-mast Implementation Regulations Article 2

If an incumbent president or vice president died, the following regulations shall be applicable for half-mast:(1) President: death date to burial date.(2) Vice president: burial date.
中文原文 國旗下半旗實施辦法第2條
現任總統、副總統逝世時,依下列規定下半旗:
一、總統:自逝世之日起至安葬之日。
二、副總統:安葬之日。

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