Pay Act of the Armed Force Article 9
When a reserve military serviceman renders active military service, or an active or reserve military serviceman enters military academic for basic education for an officer and is appointed as an active voluntary military service commissioned officer or a noncommissioned officer after graduating, his prior service period shall be merged when the pay grade is promoted.
中文原文 軍人待遇條例第9條
後備役軍人志願再服現役，或現役軍人及後備役軍人考入軍事學校接受軍官、士官基礎教育畢業任志願役現役軍官、士官者，其先後年資，於俸級晉支時併計之。