In Australia, the EMC requirements for electrical products are monitored by ACA (Australin Communications Authority). In addition to the Australian and New Zealand Standards (AS/NZS), ACA recognized 103 other standards in 2002, including EN, IEC and CISPR.

In order to limit the impact of electromagnetic interference, Australia has implemented mandatory electromagnetic interference (EMI) requirements for all products within the scope of the standards since January 1999. Some EMC test items must also meet mandatory requirements, which are: conducted interference, intermittent interference (clicking sound), and radiated interference. The remaining EMC items are not mandatory. Products can only be affixed with the C-Tick mark after being tested and found to meet the relevant standards. Any company or individual who wants to use this mark must apply to the government department in charge and can only use it after obtaining written approval, and the height of the mark must not be less than 3 mm.