Occupational Health and Safety (Maritime Industry) Regulations 2026
Sch 3National standards for confined spaces
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Schedule 3—National standards for confined spaces
Division 1—Preliminary
Note: Under subsection 109(1) of the Act, if the Minister approves a code of practice for confined spaces, it can be used to provide practical guidance to operators.
1 Objects of Schedule 3
The object of this Schedule is to minimise risks to the health of persons working in confined spaces on prescribed ships or prescribed units.
2 Definitions for Schedule 3
(1) In this Schedule:
atmospheric monitoring means continuous measurement, over an uninterrupted duration of time, of:
(a) the concentration of oxygen; or
(b) airborne contaminants.
atmospheric testing means measurement, that is not continuous, of:
(a) the concentration of oxygen; or
(b) airborne contaminants.
competent person means a person who:
(a) has, by a combination of training, education and experience, acquired knowledge and skills to enable the person to:
(i) make an informed assessment of the likelihood of an airborne contaminant being present or subsequently arising in a confined space; or
(ii) correctly perform a specific task associated with a confined space; and
(b) meets any specific requirements imposed by a State or Territory law in relation to making the assessment or performing the specific task.
confined space means an enclosed space or partially enclosed space:
(a) that is, or is intended to be, at normal atmospheric pressure while a person is in the space; and
(b) that is not intended or designed primarily for human occupancy; and
(c) within which there is a risk of one or more of the following:
(i) an oxygen concentration outside the safe oxygen range;
(ii) an airborne contaminant that could cause impairment, loss of consciousness or asphyxiation;
(iii) a flammable airborne contaminant that could cause injury from fire or explosion;
(iv) engulfment in a stored free flowing solid or a rising level of liquid that could cause suffocation or drowning;
whether or not the space has a restricted means of entry or exit.
contaminant means a dust, fume, mist, vapour, gas or biological matter or another substance in liquid or solid form, which could be harmful to persons.
flammable airborne contaminant means a dust, fume, mist, vapour or gas present in the air at concentrations that can propagate a flame on contact with an ignition source.
hazard means a source of potential harm.