This document identifies the significant hazards (see 4) in the use of all sizes of HP by fire fighting and rescue services, on the basis that they are supplied in a complete form, tested and ready for use, and gives methods for the elimination or reduction of these hazards and for the use of safe working practices. NOTE The principles of this standard have been used for HPs ranging from the smallest up to working heights exceeding 70 m, and are expected to be applicable to all foreseeable developments of HPs for Fire Services. This document deals with HPs, the base of which is normally a motor vehicle, but can also be static or fixed, or mobile in the form of: — a trailer or de-mountable unit — any other type of self-propelled vehicle For vehicle mounted HPs this document is intended to be used in conjunction with EN 1846-2, Fire fighting and rescue service vehicles — Part 2: Common requirements — Safety and performance. This document is not applicable to HPs which were manufactured before the date of publication of this document by CEN. 1.2 This document is applicable to the structural design calculations and stability criteria, constructional details and tests of HPs, and gives guidance on the intended life limits for HPs (see 5.2.5.2.2). NOTE This document may also be used for machines similar to HPs equipped with monitors, surveillance or other equipment for firefighting use but not intended for lifting persons.