This course covers what you need to know about the Control of Substances Hazardous to Health (COSHH). It’s aimed at anyone who is exposed to Substances Hazardous to Health at work, as well as line managers with responsibility for such people who work with these substances. So what do we mean by ‘Substances Hazardous to Health’? In legal terms, these are substances that are classified as “very toxic, toxic, harmful, corrosive or Irritant” under the Classification, Labelling and Packaging Regulation (CLP).