Revocation, suspension and variation of noise certificate or exemptionU.K.
22.—(1) The CAA may, if it thinks fit, provisionally suspend any noise certificate or exemption issued under Part 2 pending inquiry into or consideration of the case.
(2) The CAA may, after sufficient ground being shown to its satisfaction after due inquiry, revoke, suspend or vary any such certificate or exemption.
(3) The holder or any person having the possession or custody of any noise certificate or exemption which has been revoked, suspended or varied under paragraph (2) must surrender it to the CAA within a reasonable time after being required to do so by the CAA.
(4) The breach of any condition subject to which any noise certificate or exemption has been issued under Part 2 renders the certificate or exemption invalid during the continuance of the breach.