General Rules of Taiwan Railways Administration, MOTC on Subsidiaries Management Article 17

If the branches have employed any staff for human resources, budgeting/accounting and civil service ethics – whether or not they are new hires or transferred from other divisions- based on the original Rules of Employment for Civil Servants, they may continue their employment based on related laws until unemployment.For the directors in the Personnel Office and Civil Service Ethics Office who are employed according to Article 14 and 15 in the General Rules are at 8th Grade of associate rank; personnel officers are at 5th Grade of assistant rank to 7th Grade of associate rank; officers at 5th Grade of assistant rank and 6th - 7th Grade of associate rank; clerks are at Grade 4-5 of assistant rank (and up to 50% of them are at 6th Grade of associate rank).
中文原文 交通部臺灣鐵路管理局所屬分支機構組織通則第17條
各分支機構原依公務人員任用法銓敘審定有案之現職及依職期輪調規定調進之人事、主計、政風人員,得繼續適用公務人員任用法相關規定至離職時為止。
前項人員經派充為第十四條及第十五條所定之職稱,其人事室及政風室主任職務均列薦任第八職等;人事管理員職務列委任第五職等至薦任第七職等;課員職務列委任第五職等或薦任第六職等至第七職等;助理員職務列委任第四職等至第五職等,得以其員額二分之一以內列薦任第六職等。

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