IRImplementing rule
21L.A.90Continued validity of a supplemental type certificate
(a)A supplemental type certificate shall remain valid as long as:
1.the supplemental type certificate is not surrendered by the holder;
2.the holder of the supplemental type certificate remains in compliance with the relevant requirements of Regulation (EU) 2018/1139 and the delegated and implementing acts adopted on the basis thereof, taking into account the provisions related to the handling of findings as specified under point 21L.B.21;
3.the supplemental type certificate is not revoked by the Agency in accordance with point 21L.B.22.
(b)Upon surrender or revocation, the type certificate shall be returned to the Agency.
IR · 21L.A.90 — Regulation (EU) No 748/2012 · Regulation (EU) 2022/1358 · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025