During fuel handling for any aircraft, no passenger shall remain in or enplane or deplane from such aircraft unless a qualified attendant is at each door in use for this purpose and unless a means of safe egress is in position in the event that such a device is required for the safe and rapid debarkation of the passengers. Smoking shall be prohibited in or about such aircraft during fuel handling.
(Res. No. 149 75-76 (part), Res. No. 68 86-87 §1 part))