Regulations on Contracted Employment of the Executive Yuan and Its Subordinate Agencies Article 3

When employing the contract personnel, Agencies shall take into account their moral character and loyalty to the country. Such personnel shall also be under 65 years of age and equipped with the required competencies for serving in the posts.
中文原文 行政院與所屬中央及地方各機關約僱人員僱用辦法第3條
各機關僱用約僱人員時應注意其品德及對國家之忠誠,年齡未滿六十五歲,並具有擬任工作所需之知能條件。

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