INTENT:
To limit the probability that the vertical load for the
design of a guard and its supporting structure will not take into account
the maximum expected weight of persons sitting on the guard, which could lead
to structural failure, which could lead to harm to persons.
To clarify that the loads applied vertically at the top
of every guard need not be combined with the loads applied horizontally at
the top of every guard as specified in
Sentence
4.1.5.15.(1).