This document specifies the minimum requirements necessary to ensure the safe design@ calculation@ manufacture@ and installation of mobile@ temporary or permanently installed machinery and structures which are intended for use by persons as a leisure activity@ e.g. roundabouts@ swings@ boats@ Ferris 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. Fixed grandstands@ construction site installations@ scaffolding@ removable agricultural structures and simple coin operated children's amusement devices@ carrying up to three children@ are not covered by this document. Nevertheless this document may 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 applicable to manufacturing and major modification of amusement devices and rides manufactured to designs after the effective date of publication. This standard does not apply to manufacture of pre-existing designs made according to EN 13814:2004 for a period of 5 years following the publication of the present standard. prEN 13814-3:2016 contains requirements for inspection during design@ manufacture@ operation and use.