This document specifies the minimum requirements necessary to ensure the safe design@ calculation@ manufacture@ and installation of the following: mobile@ temporary or permanently installed machinery and structures e. g. roundabouts@ swings@ boats@ big wheels@ roller coasters@ chutes@ grandstands@ membrane or textile structures@ booths@ stages@ side shows@ and structures for artistic aerial displays. The above items are hereafter called amusement devices@ which are intended to be installed both repeatedly without degradation or loss of integrity@ and temporarily or permanently in fairgrounds and amusement parks or any other locations. This document does not cover fixed grandstands@ construction site installations@ scaffolding@ removable agricultural structures and simple coin operated children's amusement devices@ carrying not more than two children. Nevertheless this document can be used in the design of any similar structural or passenger carrying device not explicitly mentioned herein. Existing national rules on workers' safety are not concerned by this document. This document is not applicable to amusement devices which are manufactured before the date of publication of this document.