Rail transport is regarded as a future-oriented and eco-friendly form of mobility, and is thus an important component in achieving the climate protection targets that have been set. Both energy consumption and greenhouse gas emissions are significantly lower overall when compared to modes of road transport (1). However, this also increases the demands placed on the railway system. Railway companies must comply with various technical requirements and regulations regarding the economic efficiency, safety and sustainability of their trains and their components.
To this end, national approvals must be obtained in each state - for both freight and passenger transport. In Germany, safety and quality are ensured by the mandatory certification of TÜV NORD, among others, which has been active in the field of railway applications for many years.