The Control of Substances Hazardous to Health Regulations 2002, requires employers to assess and control the risks from hazardous substances.
COSHH requires employers to assess the risks to health from hazardous substances before work begins, and then to prevent or adequately control exposure. Control measures such as local exhaust ventilation must be maintained, examined and tested, and exposure monitored where there is a risk to health.
Employees must be given information, instruction and training, and health surveillance provided where exposure could lead to a foreseeable disease or adverse health effect.