This European Standard specifies the technical requirements to deal with the significant hazards, hazardous situations and events, common to demountable machines, as defined in FprEN 15955-1:2012, intended for construction, maintenance inspection of the railway infrastructure, shunting and emergency rescue vehicles. This European Standard specifies the technical requirements to deal with the common hazards during transport, assembly and installation, commissioning, running on track, use including setting, programming, and process changeover, operation, cleaning, fault finding, maintenance and de-commissioning of the machines when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer; see Clause 4. NOTE Specific measures for exceptional circumstances are not dealt with in this European Standard. They can be the subject of negotiation between manufacturer and the machine operator. The common hazards dealt with include the general hazards presented by the machines, as well as the hazards presented by the following specific machine functions: excavation; ballast tamping, ballast cleaning, ballast regulating, ballast consolidating; track renewal; rail maintenance; craning; catenary renewal / maintenance; maintenance of the components of the infrastructure; inspection and measurement of the components of the infrastructure; tunnel inspection / ventilation; shunting; emergency rescue and recovery; during commissioning, use, maintenance and servicing.