Vital machinery and equipment are those that are essential to the
                           safety of the MODU and all personnel on board. They include, but are not
                           limited to, fire pumps, emergency sources of power, dynamic positioning
                           systems, remote blowout preventer activation controls, and other operational or
                           safety systems the sudden failure of which may result in hazardous situations.
                           This does not include spaces (e.g. the driller's cabin) located on the drill
                           floor.