Page 4 of 4 6. SAFE SYSTEM OF WORK 6.1 Poorly maintained or adjusted control measures can result in inadvertent exposure to substances hazardous to health. 6.2 Employees must be encouraged to report defects and systems must be in place for prompt repair and for the provision of temporary replacement controls, e.g. personal protective equipment (PPE). The following steps can be taken to minimise the risk: Ensure hazard information is kept up to date. Ensure assessments are reviewed annually and reassessed every three years or when changes are made. Ensure employees are trained in the nature of the hazards and use of control measures. Ensure controls are maintained and monitored. Ensure documentation is comprehensive and understandable. Encourage employees to report faults and problems. 7. RECORD KEEPING 7.1 No chemical is completely safe in all circumstances and any airborne dust, in significant quantities, can damage health. Since the hazard to health posed by many substances is not known, it is good practice to use working methods to minimise exposure. If the hazards are known, specific steps can be taken. The seven most important steps are: identify the hazard assess the risk eliminate, prevent or control the risk maintain and monitor the controls monitor the health of the workforce ensure assessments and controls are up to date inform and train the workforce.