4.6.2.5.(1)

Intent 1:

To limit the probability that vehicle, watercraft or floatplane impact on, or mechanical damage to, piping will lead to failure of the piping, which could lead to the escape of liquid, which could lead to harm to the public.

Intent 2:

To limit the probability that vibration or excessive movement of the piping will lead to failure of the piping, which could lead to the escape of liquid, which could lead to harm to the public.