This policy outlines the Occupational Health and Safety (OHS) requirements for confined spaces.
- The and require the department to provide or maintain, systems of work that are, so far as is reasonably practicable, safe and without risk to health — including the management of confined spaces.
- No department employee is permitted to enter a confined space for example, storage tanks, silos, ducts, chimney, underground sewer, well, or any shaft or trench, at any time.
- The principal and/or their delegate must ensure that a qualified contractor is engaged for any works to be conducted in a confined space.
- The principal and/or their delegate, in consultation with the contractor, is to complete and sign a prior to the commencement of any works in a confined space.
- Under the OHS Act 2004, employees while at work must take reasonable care for their own health and safety and the safety of others who may be affected by their actions or omissions.
- Central and regional offices provide a range of supports and services to assist principals and employees to be safe and well, including access to the OHS Advisory Service and local OHS regional officers who can provide free advice on managing risks related to confined spaces.
- The (in the Procedure tab) must be followed, and sets out the practical step-by-step instructions for implementing this policy.
- This policy forms part of the department’s OHS Management System, refer to for further information.
The principal and/or their delegate must ensure that:
- a suspected confined space is identified in consultation with the and the OHS Advisory Service
- an identified confined space is recorded in the ‘Hazard Type’ column on the (for example, list the hazard as a confined space)
- risk controls are identified and implemented to manage confined spaces using the hierarchy of controls and recorded on the
- a confined space is made secure to prevent unauthorised access and has signage at all entry points to the space
- all contractors engaged to undertake works in confined spaces are approved contractors as per the
- the approved contractor supplies a (SWMS) or equivalent
- in consultation with the approved contractor, a is completed and signed prior to the commencement of any works in a confined space. This permit is only valid for twenty four hours
- a copy of the signed permit is retained
- if the scope of work changes, the confined space work is to cease immediately and a new is to be re-issued
- all hazards, incidents and injuries are reported on (staff login required).
A contractor who has completed the appropriate training for confined spaces and hold current certification in:
- DEFWHS010 — identify confined space
- RIIWHS202D — enter and work in confined spaces
- PUASAR025A — undertake confined space rescue
An approved contractor must also hold current workers compensation and public liability insurance (the department’s stipulated minimum cover for public liability is $10 million).
- having an enclosed or partially enclosed space with restricted entry and exit
- containing an oxygen concentration outside the safe oxygen range
- containing a concentration of airborne contaminants that may cause impairment, loss of consciousness or asphyxiation
- containing a concentration of flammable airborne contaminant that may cause injury from fire or explosion
- risk of engulfment in any stored substance (for example, grain, sand or saw dust) except liquids.
Examples of confined spaces include storage tanks, silos, ducts, chimneys, underground sewers, wells, or any shaft or trench.
Confined Space Entry Permit
A is to be issued by the principal or their delegate. The permit provides details of a formal check to ensure all elements of a safe system of work are in place before persons are permitted to enter the confined space. A Confined Space Entry Permit is valid for a maximum of twenty four hours.
Hierarchy of controls
There are a number of ways that risks associated with hazards can be reduced however, the effectiveness of each method may vary. The prioritising of approaches in managing the risks associated with a hazard is called the hierarchy of controls and indicates the decreasing level of effectiveness of various approaches. The hierarchy of controls are:
- eliminating the hazard at the source
- substituting the hazard with something else that poses a lesser risk
- isolating the hazard with an engineering control
- implementing administrative controls and changing the way work is done
- providing Personal Protective Equipment (PPE).
Often a number of different approaches are used in conjunction with each other to provide a more effective risk treatment.
Reviewed 29 April 2022