This European Standard applies to body structures on commercial vehicles and on trailers. This European Standard sets out basic minimum requirements for standard vehicle bodies (side walls, front and rear walls) and for reinforced vehicle bodies and specifies appropriate tests. This standard applies to all commercial vehicles which are related by design and body type to the body structures described below. Forces applied according to the test requirements described below can be invoked for load securing purposes. The floor of the vehicle is a part of the sub frame. As long as the floor strength is not defined, the manufacturer should give the necessary information. It is recommended to specify the loading capacity of the floor, the test and marking should be carried out analogous to EN 283. This European Standard does not apply to vans according to ISO 27956.