Customs Personnel Management Act Article 11
The incumbent certified staff of Directorate General of Customs and its subordinate organizations who have been recruited before the promulgation of this Act shall be reassigned, and the pay rate thereof shall be switched pursuant to the incumbent positions if possessing the statutory appointment qualifications stated in Articles 5 and 8 of this Act; the Examination Yuan shall hold examinations within a limited time period for those who don’t have the statutory appointment qualifications; the regulations governing the examination shall be promulgated by the Examination Yuan. Those who have not passed the qualification examination may remain in the current position until they leave the organization.The regulations governing the reassignment and the switch of pay rate shall be promulgated by the Examination Yuan along with the Executive Yuan.