Assembly for the handling of containers comprising: - at least one parallelepipedal container comprising an upper wall, a lower wall and side walls (23, 24, 25, 26), lower hollow elements for installing twist locks being located at the corners of the lower wall, - a motorized device for moving the container, said device comprising: ∘ a chassis provided with wheels, ∘ a support structure provided with a platform on which is positioned the container, said platform comprising longitudinal edges and transverse edges, ∘ the platform comprises cutouts allowing access to the lower hollow elements of the container positioned on said platform, such that an operative can remove or install the twist locks in said hollow elements, - the platform is located at such a height that an operative might remove or install the twist locks in the lower hollow elements from the ground, - the platform comprises cutouts in the form of notches created on the longitudinal edges of said platform, such that said longitudinal edges have, in alternation, solid portions on which the container rests and hollow portions which are formed by said notches and which allow access, from the ground, to the lower hollow elements of said container, which notches are dimensioned so as to allow an operative to pass through, characterized in that - at least one side wall of the container is formed by articulated doors (23a, 23b), which doors are equipped with a single-use numbered seal which prevents said doors from opening, - each notch is associated with a stairway opening onto the platform such that, by climbing said stairs, an operative might reach and inspect the seal. - at least one parallelepipedal container comprising an upper wall, a lower wall and side walls (23, 24, 25, 26), lower hollow elements for installing twist locks being located at the corners of the lower wall, - a motorized device for moving the container, said device comprising: ∘ a chassis provided with wheels, ∘ a support structure provided with a platform on which is positioned the container, said platform comprising longitudinal edges and transverse edges, ∘ the platform comprises cutouts allowing access to the lower hollow elements of the container positioned on said platform, such that an operative can remove or install the twist locks in said hollow elements, ∘ a chassis provided with wheels, ∘ a support structure provided with a platform on which is positioned the container, said platform comprising longitudinal edges and transverse edges, ∘ the platform comprises cutouts allowing access to the lower hollow elements of the container positioned on said platform, such that an operative can remove or install the twist locks in said hollow elements, - the platform is located at such a height that an operative might remove or install the twist locks in the lower hollow elements from the ground, - the platform comprises cutouts in the form of notches created on the longitudinal edges of said platform, such that said longitudinal edges have, in alternation, solid portions on which the container rests and hollow portions which are formed by said notches and which allow access, from the ground, to the lower hollow elements of said container, which notches are dimensioned so as to allow an operative to pass through, - at least one side wall of the container is formed by articulated doors (23a, 23b), which doors are equipped with a single-use numbered seal which prevents said doors from opening, - each notch is associated with a stairway opening onto the platform such that, by climbing said stairs, an operative might reach and inspect the seal.