Permit Issuer – Trained, experienced employee who has been given the authority to issue permits to work by the Site Manager.
Acceptor – Person who accepts the permit and is in charge of the permitted work to be done.
Permit to work – Documentation that safety, health and environmental precautions have been considered and addressed prior to maintenance or non-routine tasks. The permit indicates that the person in charge of the facility, department or equipment has been informed of the work to be done.
Confined space – Any vessel or space large enough for entry that is not intended for continuous occupancy; where there exists limited means of egress and/or the potential for life threatening conditions (e.g. hazardous fumes or oxygen deficiency).
Excavation – Any operation which disturbs ground, walls or floors, that is large enough to present a potential hazard.
Lock out/Tag out – A systematic means of positively isolating machinery or equipment from sources of stored energy and materials hazards, in such a way that only the person doing the work will control the release of energy or material hazard. This is a tool, rather than a separate permit procedure. Also known as isolation of plant and equipment from energy and hazardous materials.
Hot-tapping – Tasks carried out involving filled pipe lines or equipment. Includes work on systems under pressure, or where welding cutting or grinding on on-line equipment is concerned.
Hot Work – Activities that involve flame, sparks, or heat generation, which could act as a source of ignition.
Restricted Area – Activities that will be carried out in special areas of the facility that requires Management notification.