Land Act Article 25

All public lands under the jurisdiction of the Special Municipal or County (City) Government shall not be disposed of, or encumbered, or leased for a period longer than ten years without the consent of the local assembly and the approval of the Executive Yuan.
中文原文 土地法第25條
直轄市或縣(市)政府對於其所管公有土地,非經該管區內民意機關同意,並經行政院核准,不得處分或設定負擔或為超過十年期間之租賃。

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