为了限制电磁干扰的影响，澳大利亚从1999年1月1日起，对所有的在标准规定范围内的产品实行电磁干扰（EMI）强制性要求。部分EMC实验项目也必须附合强制性要求，它们是：传导干扰、断续干扰（喀呖声）、射频辐射干扰；其余EMC试验项目不作强制要求，例如抗干扰、静电放电（ESD）、谐波、电压闪烁等。产品经检验后符合相关标准，可以贴上C-Tick标志。任何公司或个人要使用此标志必须向政府主管部门提出申请，得到书面批准后方可使用，而且标志的高度不低于3毫米。

     C-Tick标志旁必须按规定标上澳洲供应商的信息，以便ACA在市场上抽检产品时能有效地追溯到为该产品EMC负责的供应商。信息的标识包括四方面的内容：
1、澳洲供应商在注册名称与地址；

2、澳洲****号（Australian Company Number）
3、由ACA颁发给澳洲供应商的号码；
4、产品在澳洲市场上使用的澳洲注册商标。
To limit the impact of ic interference, Australia from January 1, 1999 onwards, for all of the standard within the specified scope of products from 电磁 interference (EMI) Mandatory Yaoqiu. Part of the EMC experiment projects must meet mandatory requirements, which are: conducted interference, intermittent interference (Ka Li sound), radio frequency radiation interference; other EMC test items are not for mandatory requirements, such as interference, electrostatic discharge (ESD), harmony wave, voltage flicker. Upon examination products meet the relevant standards, you can paste C-Tick mark. Any company or inpidual to use this flag must apply to the competent government department to obtain written approval before use, and marks the height of not less than 3 mm.

     C-Tick mark next to be marked as required information on Australian suppliers to ACA sampling products in the market can effectively be traced back to the EMC for product suppliers. Identification information including four aspects:
1, Australian suppliers in the registered name and address;

2, Australia **** number (Australian Company Number)
3, the ACA issued to Australian suppliers of number;
4, the product on the market in Australia to use a registered trademark in Australia.