The obligation
PCBUs proposing to excavate a trench at least 1.5 metres deep must ensure, so far as is reasonably practicable, the work area is secured from unauthorised or inadvertent entry.
The nature of the excavation work affects the selection of an excavation method and a safe system of work. Careful consideration should be given to health and safety when planning work that involves anything other than shallow trenching and small quantities of material. The Code lists WHS Regulation 306 on additional controls for trenches.
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- What
- PCBUs proposing to excavate a trench at least 1.5 metres deep must ensure, so far as is reasonably practicable, the work area is secured from unauthorised or inadvertent entry.
- Source
- worksafe.tas.gov.au
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Frequently asked questions
Which WHS law does this come from?
Excavation methods and securing trench work areas (TAS) is a WHS requirement set out in Excavation work (TAS). It is made under Work Health and Safety Act 2012 (TAS). The relevant provision is Excavation work > Excavation Methods.
What does this WHS obligation require?
Excavation methods and securing trench work areas (TAS) is a WHS obligation under Excavation work (TAS). In short, PCBUs proposing to excavate a trench at least 1.5 metres deep must ensure, so far as is reasonably practicable, the work area is secured from unauthorised or inadvertent entry.
What changed recently?
Excavation methods and securing trench work areas (TAS) was last updated on 19 October 2026.