This standard contains specifications meeting the essential requirements set out in Annex I of EU Machinery Directive 2006/42/EC which apply to machines that are first placed on the European Economic Area (EEA) market, in order to facilitate proof of compliance with these requirements. Once this standard is cited in the Official Journal of the European Union, it is deemed a "harmonized" standard and thus, a manufacturer applying this standard may assume compliance with the requirements of the Machinery Directive ("presumption of conformity"). This International Standard applies to safety requirements and the means for their verification, additional to those of ISO 3691-1, for industrial trucks with a vertical, non-tilting mast: a) those trucks having an elevating operator position, and order-picking trucks, as defined in 22.214.171.124.6 and 126.96.36.199 of ISO 5053, where the elevating operator position and the load-handling device lifts to a height of more than 1 200 mm above ground level, and b) lateral- and front-stacking trucks, as defined in 188.8.131.52.9 and 184.108.40.206.10 of ISO 5053, designed to travel with a load-handling device elevated more than 1 200 mm above ground level. For this purpose, the load-handling device elevated, lowered or laterally displaced, laden or unladen, while the truck is travelling. These trucks are designed to travel indoors on a smooth, level surface and can be guided, unguided, or both, when in use; they are not intended to tow or push. Any regional requirements given in this International Standard can be found and applied in conjunction with the requirements for Europe given in ISO/TS 3691-7 and the non-European requirements given in ISO/TS 3691-8. The requirements of ISO 3691-1 apply for trucks with an elevating operator position up to and including 1 200 mm, or to trucks specifically designed to travel with an elevated load having a fork height up to and including 1 200 mm above ground level. This standard differs from DIN EN 1726-2:2001-02 as follows: a) the entire standard has been completely revised, in particular Clause "Verification" and has been brought up to the current state of the art; b) Annexes for stability have been removed and transferred into separate standards. This part of ISO 3691 does not contain requirements for stacker trucks which handle two loads, one on the forks and the other on the support arms (this type of truck being covered by ISO 3691-1). This standard contains the German version of FprEN 3691-3:2013 which has been prepared by ISO/TC 110 "Industrial trucks" in collaboration with Technical Committee CEN/TC 150 "Industrial trucks - Safety" at the European Committee for Standardization (CEN). The national interests during the preparation were represented by Committee NA 060-22-42 AA "Sicherheit von Flurförderzeugen" ("Safety for industrial trucks") in Technical Section "Fördertechnik" ("Conveying technology") of the Standards Committee Mechanical Engineering (NAM) at DIN, the German Institute for Standardization e. V.