This part of ISO 11680 gives safety requirements and measures for their verification for the design andconstruction of portable, hand-held, pole-mounted powered pruners with a back-pack power unit and usinga drive shaft to transmit power to a cutting attachment consisting of a saw chain or reciprocating or circularsaw blade (hereafter referred to as “machine”). Methods for the elimination or reduction of hazards arisingfrom the use of these machines and the type of information on safe working practices to be provided by themanufacturer are specified.