The Implementing Regulation on Air-raid Practice Article 4
The air-raid practice may be executed with early-warning or non-warning system. Once the non-warning system is taken, it may take public notice in advance to notify that the non-warning anti-raid practice alarm will be released within a certain period of time.
中文原文 防空演習實施辦法第4條
防空演習得採有預警或無預警之方式實施。
採無預警方式實施時，得先期公告某期間內，將發布無預警防空演習警報。
採無預警方式實施時，得先期公告某期間內，將發布無預警防空演習警報。