Under health and safety law in the UK, self-employed persons have a duty to comply with the health and safety obligations where: • they employ staff to work for them, and/or • the work activity being undertaken is listed as a prescribed undertaking, or • the work activity being undertaken poses a risk to the health and safety of others In practical terms, this means that those self-employed who do not employ workers, do not perform a prescribed undertaking and whose work activities pose no potential for risk to others are exempt from the obligations imposed by health and safety law. When is someone classified as 'self-employed' under health and safety law? Health and Safety at Work etc Act 1974 (HSWA 1974) provides that a person is taken to be self-employed if they are someone who 'works for gain or reward otherwise than under a contract of employment, whether or not he himself employs others'. So anyone who works for themselves, not under a contract of employment, is deemed to be self-employed