Government Procurement Act Article 24

An entity may, according to the needs of efficiency and quality, conduct the procurement on a turn-key basis.The term "turn-key" referred to in the preceding paragraph means the procurement of construction work or property by consolidating the procurement of design and work, supply, installation, or maintenance within a certain period, etc. into a contract for tendering.The regulations for the implementation of turn-key shall be prescribed by the responsible entity.
中文原文 政府採購法第24條
機關基於效率及品質之要求,得以統包辦理招標。
前項所稱統包,指將工程或財物採購中之設計與施工、供應、安裝或一定期間之維修等併於同一採購契約辦理招標。
統包實施辦法,由主管機關定之。

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