The definition of a confined space is any space of an enclosed nature where there is a risk of death or serious injury from hazardous substances or dangerous conditions. This applies not only to the confined space, but also to the area nearby.

Confined spaces can include: areas with limited openings such as storage tanks, silos, reaction vessels, enclosed drains, sewers open-topped chambers such as vats, combustion chambers in furnaces, ductwork closed, unventilated or poorly ventilated rooms

Typical hazards in confined spaces include: lack of oxygen poisonous gases fumes or vapours liquids or solids (eg grain) filling the space fire and explosions dust excesses in temperature .

Following the questionnaire to be completed by the employee(s),a full medical examination is undertaken following which a Certificate of Fitness to Work at in a Confined Space  issued.

Click here on the HSE website for further guidance.