41(1)An employer shall ensure that no material is dumped from any vehicle over an opening, an ore pass or a bank more than three metres in height unless there is
(a)
an anchored block or a ridge of material sufficient to keep the vehicle at a safe distance from the edge of the opening, ore pass or bank, or
(b)
a signal person in the sight of the operator of the vehicle, directing the operator and ensuring that the vehicle is kept at a safe distance from the edge of the opening, ore pass or bank.
41(2)An employer shall ensure that no employee remains in the cab of any vehicle while it is being loaded by mobile equipment unless the cab has adequate protection against spill from the loading operation.