Segway PT i2 Getting Started Manual page 130

The Segway PT has not been designed, tested or approved as a
medical device. You must be able to step on and off the
Segway PT unassisted, which requires physical abilities similar
to ascending and descending stairs without assistance, and
without holding the handrail.
When riding, keep both hands on the Handlebar and both feet on
the Mats. Do not attempt to carry any object in your hand(s). If
you need to carry any object, use a cargo accessory that is
recommended by Segway or a securely attached backpack with
both shoulder straps in place.
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