(b)  
The commander shall ensure that before take-off and landing, and whenever deemed necessary in the interest of safety, all equipment and baggage are properly secured.

CAT.OP.MPA.235 Life-jackets — helicopters 
The operator shall establish procedures to ensure that, when operating a helicopter over water in performance class 3, account is taken of the duration of the flight and conditions to be encountered when deciding if life-jackets are to be worn by all occupants.

CAT.OP.MPA.240 Smoking on board
The commander shall not allow smoking on board:
(a)  
whenever considered necessary in the interest of safety;

(b)  
during refuelling and defuelling of the aircraft;

(c)  
while the aircraft is on the surface unless the operator has determined procedures to mitigate the risks during ground operations;

(d)  
outside designated smoking areas, in the aisle(s) and lavatory(ies);

(e)  
in cargo compartments and/or other areas where cargo is carried that is not stored in flame-resistant containers or covered by flame-resistant canvas; and

(f)  
in those areas of the passenger compartment where oxygen is being supplied.

CAT.OP.MPA.245 Meteorological conditions — all aircraft
(a)  On IFR flights the commander shall only:
(1)  
commence take-off; or

(2)  
continue beyond the point from which a revised ATS flight plan applies in the event of in-flight replanning,

when information is available indicating that the expected weather conditions, at the time of arrival, at the destination and/or required alternate aerodrome(s) are at or above the planning minima.
(b)  
On IFR flights, the commander shall only continue towards the planned destination aerodrome when the latest information available indicates that, at the expected time of arrival, the weather conditions at the destination, or at least one destination alternate aerodrome, are at or above the applicable aerodrome operating minima.

(c)  
On VFR flights, the commander shall only commence take-off when the appropriate weather reports and/or forecasts indicate that the meteorological conditions along the part of the route to be flown under VFR will, at the appropriate time, be at or above the VFR limits.

CAT.OP.MPA.246 Meteorological conditions — aeroplanes
In addition to CAT.OP.MPA.245, on IFR flights with aeroplanes, the commander shall only continue beyond:
(a)  
the decision point when using the reduced contingency fuel (RCF) procedure; or

(b)  
the pre-determined point when using the pre-determined point (PDP) procedure, 
　
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本文鏈接地址：Annexes to the draft Commission Regulation on ‘Air Operations - OPS’(89)