In late July 2016 the German Federal Court of Justice (Bundesgerichtshof, BGH) issued a ruling where companies may only use certification marks in advertising targeted at consumers (B2C) if they also provide a reference where consumers can look up a short summary of the relevant test criteria.
Exempt from the above is the GS marking, which is regulated by law in the Product Safety Act.
If you use a TÜV SÜD certification mark in your consumer advertising, you must provide your customers with further information in the future. To support you in fulfilling this requirement, TÜV SÜD Product Service has created a website where your customers can find out about the type of certification mark and the tested properties. The site can be accessed here: www.tuv-sud.com/ps-cert.
Therefore we highly recommend you to use only TÜV SÜD certification marks that include this Internet link in your product advertising. Otherwise, you risk warnings by consumer protection organisations, or even legal actions by third parties on the grounds of violation of Germany's Unfair Competition Act (UWEG)