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21.A.51 Duration and continued validity

Regulation (EU) No 748/2012

(a)     A type-certificate and restricted type-certificate shall be issued for an unlimited duration. They shall remain valid subject to:

1.       the holder remaining in compliance with this Annex 1 (Part 21); and

2.       the certificate not being surrendered or revoked under the applicable administrative procedures established by the Agency.

(b)     Upon surrender or revocation, the type-certificate and restricted type-certificate shall be returned to the Agency.