The entry into a confined space is potentially one of the most dangerous activities associated with any hazardous substance operation. Due to the unique conditions that can exist, great care must be taken both before and during this type of work procedure.
Since asphyxiation is the leading cause of death in confined spaces due to situations involving IDLH (immediately dangerous to life and health) atmospheres that are poorly ventilated as compared to more open areas, all efforts will be devised to control oxygen deficient/combustible/toxic environments that may be encountered prior to or during work activities.
Note: Total energy isolation is required before any entry will be allowed. See Lockout/Tagout program information for details.