What is the difference between CE mark and GS mark?

CE marking is your own declaration that the product complies with all applicable CE marking Directives. Generally there is no necessity to involve a 3rd party in the process (albeit recommended). The GS Mark is a 3rd party certification issued by a Certification Body (such as TÜV SÜD) which is based on independent testing and ongoing surveillance of the production facilities in which the product is manufactured.

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