This document specifies the minimum requirements necessary to ensure the safe maintenance@ operation@ inspection and testing of amusement ride and 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 not more than two children@ are not covered by this document. Existing national rules on workers' safety are not concerned by this document.