237Immediate action after a misfire

237 Immediate action after a misfire (1) If there is a misfire, the shot-firer must ensure that no person enters the blasting area until the end of whichever of the following periods apply, or, if more than 1 period applies, until the end of whichever of the following periods ends last: (a) if safety fuse was used—30 minutes after use; or (b) if a signal tube was used—5 minutes after use; or (c) if electric detonators were used—5 minutes after the time the firing cables are disconnected and short-circuited. (2) Subsection (1) does not apply to a cut-off or butt. (3) The shot-firer must, as soon as possible, tell the person controlling or managing the blasting site about any misfire.