This Technical Report gives guidance on approaches for awareness and evaluation of dermal exposure in workplaces. This Technical Report describes strategies to evaluate exposure of the skin to chemical and biological agents qualitatively and quantitatively, e.g. to analyse exposure, as part of the risk assessment process, to investigate associations between exposure and diseases, and to evaluate control measures. The definitions and procedures given in this document are primarily related to dermal exposure to chemical substances. The specifications given in this Technical Report are not applicable to microbiological skin contaminants.