As of 1 July 2025, updated standards for the permissible underload for heavy and oversized transport have come into force in Germany. The innovations were initiated by the Federal Ministry of Digital and Transport with the active participation of the industry association BSK (Bundesfachgruppe für Schwertransport und Kranarbeiten), which unites companies operating in the field of heavy transport and crane work.
According to the new rules, underload of up to 20% is permissible for transport with a total weight of up to 68 tonnes. For loads over 130 tonnes, the permissible deviation has been reduced to 5%. For all intermediate values, a linear calculation formula is used, which is described in detail in the regulations. These changes are aimed at increasing the accuracy of transport planning and improving control over actual axle loads.
To simplify the calculations, BSK has published a clear infographic that will help companies quickly determine the permissible level of underload depending on the declared weight.