Singapore legislation
Regulation 125
of Workplace Safety and Health (Construction) Regulations 2007
Regulation 125
Warning and retreat
Subregulation 1
Before the firing of any blast in a worksite, it shall be the duty of the person firing the blast —
(a)
to sound a warning distinctly audible to all persons within the danger zone; and
(b)
to ensure that no blast shall be fired while any person is in the danger zone.
Subregulation 2
When the warning is sounded, all persons within the danger zone shall retire to a safe distance or to a safe shelter.