In the international standard classification, en 1526 involves: Industrial trucks.
German Institute for Standardization, en 1526
DIN EN 1526:2009 Safety of industrial trucks - Additional requirements for automated functions on trucks(includes Amendment A1:2008); English version of DIN EN 1526:2009-07
European Committee for Standardization (CEN), en 1526
EN 1526:1997 Safety of industrial trucks - Additional requirements for automated functions on trucks (Incorporates Amendment A1: 2008)