Customs Personnel Management Act Article 14

The remunerations of customs officers include basic pay, seniority pay, and additional pay, all to be calculated on monthly basis.The pay rate and pay point of basic pay and seniority pay shall be based on the Scale of Positions and the Remuneration Table for customs officers attached in Paragraph 2, Article 4 of this Act.Types of additional payment are categorized as post payment, technical or professional payment, and regional payment.
中文原文 關務人員人事條例第14條
關務人員之俸給,分本俸、年功俸及加給,均以月計之。
本俸、年功俸之俸級及俸點,依第四條第二項所附關務人員官職等階及俸給表之規定。
加給分職務加給、技術或專業加給及地域加給三項。

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