The Law: Underthe Victorian Occupational Health and Safety Act (2004),the employer has a legal obligation to ensure that the workplace and the plant at the workplace is safe and without risks to health (Section 21). Electrical safety testing and tagging for all plug-in equipment falls under the general obligations of Section 21(2)(a)of the Act. In some workplaces it is considered more or less mandatory that all electrical equipment be checked and "tagged" regularly.  The Australian New Zealand Standard AS/NZS3760In-Service Safety Inspection and Testing of Electrical Equipmentis nationally accepted as the minimum safety protocol for the workplace, and applies to plug-in or non-fixed equipment. The standard applies to all types of electrical equipment in offices, factories and so on (ie tools, machines, computers, even jugs and cooling fans).