DIN 4844-2 supplements the safety marks of ISO 7010 with national safety marks to be applied in Germany. Safety signs of these two standards are combined in Germany in the Technical Rules for Workplaces ASR A1.3. The application of the ASR A1.3 is not mandatory in Germany, but triggers a so-called presumption effect at the supervising authority. This means that all requirements for safe identification have been met. If, on the other hand, a different solution for safety marking is chosen, it must be ensured that at least the same level of safety is achieved.