13
The frontal clear zone (FCZ) is measured from the forwardmost point on the occupant’s head and
should measure at least 66 cm (26 in.) if both a pelvic and upper-torso belt are used.
See fi gure 14.
NOTE: The recommended frontal clear zone may not be achievable for power chair-seated vehicle
operators.
The rear clear zone (RCZ) is measured from the rearmost point on the occupant’s head and should
measure at least 40.64 cm (16 in.).
See fi gure 14.
The seated head height (HHT) ranges from about 120 cm (47 in.) for a small adult female to about
155 cm (61 in.) for a tall adult male.
See fi gure 14.
WARNING! Always allow for proper clear zones when securing an occupied power
chair in a motor vehicle.
WARNING! Allow as much clearance as possible around the power chair occupant
to reduce the possibility of contact with vehicle components and other passengers
in the event of a crash.
WARNING! Ensure all vehicle components that are in close proximity to the power
chair occupant are removed or covered with dense padding.
Figure 14. Recommended Clear Zones for Power Chair-seated Occupants
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