New South Wales Consolidated Regulations

OCCUPATIONAL HEALTH AND SAFETY REGULATION 2001 - REG 66

66 Definitions

In this Division:
"confined space", in relation to a place of work, means an enclosed or partially enclosed space that:

(a) is not intended or designed primarily as a place of work, and

(b) is at atmospheric pressure while persons are in it, and

(c) may have an atmosphere with potentially harmful contaminants, an unsafe level of oxygen or stored substances that may cause engulfment, and

(d) may (but need not) have restricted means of entry and exit.

(a) storage tanks, tank cars, process vessels, boilers, pressure vessels, silos and other tank-like compartments,

(b) open-topped spaces such as pits or degreasers,

(c) pipes, sewers, shafts, ducts and similar structures,

(d) shipboard spaces entered through a small hatchway or access point, cargo tanks, cellular double bottom tanks, duct keels, ballast and oil tanks and void spaces (but not including dry cargo holds).