What do you understand by form-fit securing of the load?

Form-fit securing means that the load is secured by fitting it tightly against fixed parts of the vehicle, such as the front and side walls, so it cannot shift during transport. Additionally, any gaps between parts of the load need to be filled with suitable materials (like wedges or blocking) to prevent movement. This type of securing relies on snug placement and filling spaces rather than lashing or tying down the load, which is a different securing method. This ensures the load remains stable by direct contact and support from the vehicle structure.