Regulation 25 Temporary exemption for jet aeroplanes
After consultation with the Secretary of State, the CAA may grant an exemption from the requirements of paragraph (2) of regulation 8 or paragraph (2) of regulation 9 to permit, in exceptional individual cases, temporary use in the United Kingdom and Gibraltar of aeroplanes which could not otherwise lawfully be operated on the basis of that regulation.
Subject to paragraph (3), after consultation with the Secretary of State, the CAA may grant an exemption from the requirements of paragraph (2) of regulation 12 or paragraph (2) of regulation 14 to permit the temporary use at any airport situated in the United Kingdom of any aeroplane which could not otherwise lawfully be operated on the basis of regulations 12, 14 or 22 to 24.
The CAA shall not grant such an exemption under paragraph (2) unless—
the operations of the aeroplane are of such an exceptional nature that it would be unreasonable to withhold such an exemption; or
the aeroplane is being operated on a non-revenue flight for the purposes of alterations, repair or maintenance.