Which of the following acts relates to workplace safety?

The Workplace Health and Safety Act 1995 is directly focused on ensuring a safe working environment for employees. This legislation sets out the obligations of employers to provide a workplace that is free from hazards that could cause harm to workers. It outlines specific safety measures, training requirements, and responsibilities for both employers and employees. The intent of this act is to promote health and safety standards, thereby reducing workplace injuries and illnesses, which is essential for maintaining productivity and protecting workers' rights.

In contrast, the other acts mentioned serve different purposes. The Health Rights Commission Act addresses the rights of patients and health service users, focusing on health care quality and complaints management. The Powers of Attorney Act pertains to the legal authority to act on someone else's behalf, primarily in financial or personal matters, rather than workplace safety. The Civil Liability Act deals with liability issues, such as negligence and compensation for injuries, but is not specifically aimed at workplace safety regulations.