ANNEX IIIU.K.ORGANISATION REQUIREMENTS FOR AIR OPERATIONS[PART-ORO]
SUBPART GENGENERAL REQUIREMENTSU.K.
SECTION IU.K.General
ORO.GEN.140AccessU.K.
(b)Access to the aircraft mentioned under (a) shall [, in the case of CAT,] include the possibility to enter and remain in the aircraft during flight operations unless otherwise decided by the commander for the flight crew compartment in accordance with CAT.GEN.MPA.135 in the interest of safety.U.K.