Regulation 55A

No person shall act as the organiser of an exhibition of flying (referred to in this paragraph as the exhibition organiser) at an organised event which event the exhibition organiser reasonably believes is likely to be attended by more than 500 persons and which event consists wholly or partly of an exhibition of flying unless at the time at which such an exhibition of flying commences the exhibition organiser has obtained the permission in writing of the Chief Executive under sub-paragraph (4) for the exhibition of flying and complies with any conditions therein specified:Provided that the permission in writing of the Chief Executive under sub-paragraph (4) shall not be required for an exhibition of flying at an organised event if the exhibition organiser could not reasonably foresee 7 days before the intended date of the event that it would be likely to be attended by more than 500 persons.