= Machinery Dangerous parts of machinery must be protected either by fixed guards, other forms of guard, protection devices or protection appliances, always supported by the provision of instruction, training and information to the operators and others who could be at risk. Machinery used in connection with work must be safe and not present a foreseeable risk of injury. Where there are operating parts that present a source of danger to operators and workers they should be protected. Regulations require designers and suppliers of machinery to take account of these issues during the manufacture and installation of each machine. New machines should be supplied with a CE Certificate of Conformity indicating that the basic safety requirements have been met. Despite this duty on machine suppliers every employer using machinery needs: to be sure that the right safeguarding is provided with the machine to ensure that this is kept in position and is working effectively; and make sure that safe systems of work are followed for setting and maintenance. For most types of equipment there are British or International Standards against which employers can assess the safeguarding on their machinery. These are often supported by specific guidance from enforcing authorities and trade organisations.