es and specified highrisk plant in Queensland. It does notapply to mines or land used forobtaining petroleum.What are your obligations?You can have more than one set ofobligations under the Act.For example, you may be an employerand a principal contractor at the sametime and at the same workplace. In thiscase, you would have two sets ofobligations - those of an employer and aprincipal contractor.Employers are obliged to ensure thehealth and safety of each of their workersand the health and safety of themselves.They are also obliged to ensure the healthand safety of other people is not adverselyaffected by the way the employersconduct their business and work activities.Self-employed people must ensure thattheir own health and safety and the healthand safety of others is not adverselyaffected by the way the self- employedpeople conduct their business and workactivities.People in control of workplaces areobliged to ensure that the risk of injury orillness is minimised for people coming towork at the workplace. This includes therisk of injury or illness from plant andsubstances. A person in control of aworkplace must also ensure that there issafe access to and from the workplace foreveryone.Principal contractors at constructionworkplaces have a number of obligationsaimed at ensuring that all work is carriedout so as to ensure workplace health andsafety and that workplace activities do notinvolve any risk to the public. The Divisionof Workplace Health and Safety publishesan information brochure specifically forprincipal contractors.Designers, manufacturers, importersand suppliers of plant (Includingspecified high risk plant) are obliged toensure that the plant is safe and does notpose a health risk when used properly.Obligations cover the design, construction,testing and examination of plant and theprovisions of information about its safeuse.Erectors and installers of plant(including specified high risk plant) areobliged to erect or install ...