Any air traffic controller certificate holders shall surrender his or her certificate due for revocation within 20 days as following procedures:
(1) Pursuant to the article 6, when it is found that the disqualification to perform with a degree of competency appropriate to the privileges granted to the holder of a controller rating, and still remain disqualified after re-examined by the CAA or authorized agency, the holder shall turn in his or her certificate to the CAA for revoking the associated category he or she is qualified. If the certificate states one category only, the certificate shall be turned in for cancellation.
(2) When provision of ATC services, an air miss, loss of separation or noncompliance to operational regulations occurs, and the controller’s skill is recognized as disqualified for ATC services by the CAA, the certificate shall be turned in for revocation.
(3) When an air traffic controller has ceased to exercise the relevant air traffic control privileges of the rating for consecutive 6 months, the certificate shall be turned in for revocation. Failure to exercise the certified type rating tasks of the certificate for consecutive 6 months shall surrender the certificate to the CAA for revocation of associated rating.
(4) In the cases of job transfer, resignation or retirement from the CAA or subordinate agency, the certificate shall be turned in for revocation.
Amongst holders referred to in the preceding paragraph, the holders shall complete adequate training courses approved by the CAA, then re-apply for an air traffic controller certificate and associated rating.
The training expense referred to in the preceding paragraph shall be paid by the trainee (see Attachment 4), except the case complying with personnel laws of government employees resulting in turning in the certificate for revocation in paragraph 1, subparagraph 3 of this article.