Hazard condition or changing set of circumstances has potential to cause injury. Event- a cause or contributing cause of near miss or accident or response to an accident initiating event. Incident (near miss) human activity that"s an unwanted event or occurrences has negative impact on people, property, or process. Accident- unwanted/unplanned event causes harm to people, property, processes. Direct contact w/ a form of energy greater than strength of body or structure to resist. Injury- any trauma (physical or mental) direct or indirect, acute or chronic experienced by person. Indirect injury happens overtime from direct injury (ex: infection) Chronic trauma- happens over time (ex: ergonomic injuries) Risk qualitative and quantitative expression where probability that hazard will cause some kind of accident and consequences of event. Recognizing hazards personal operation & ee concern. Id by knowledgeable and skilled person (h&s professions / engineer) Id of hazards in 5 areas of analysis: pemep: brainstorming tool for as many hazards for safety.