Germany's authorized projects include: office equipment, information technology, business machines, audiovisual equipment, home appliances, experimental equipment, medical equipment, test and measurement devices, and control equipment.
The German and American certification marks of Rhein are the same as other US NRTL (such as UL, CSA, etc.). As far as the US and Canadian markets are concerned, only Germany's Rhein has the ability to test and verify products.

Germany's Rhein issues TUVus certification mark for products in the U.S. market
Germany's Rhein issues cTUV certification mark for products in the Canadian market

When the TUVus and cTUV logos are used together, customers can mark a single logo cTUVus on the product, which can prove that this product meets the requirements of the US and Canadian markets.