ISO 19932 was published in 2006. In the meantime significant developments with respect to the legal framework took place, especially in the field of environment related regulations (see for example the amendment to the European Machinery Directive to include environmental aspects of pesticide application equipment). In addition, this standard should be reviewed with respect to the operator's safety and the need for amendments. Another important justification for the revision is the need for a harmonised European standard. Therefore, the revision should be undertaken as joint project of ISO/TC 23/SC 6 and CEN/TC 144 (Vienna Agreement) with ISO as leading organisation in order to provide an EN ISO standard covering all aspects of safety (operator & environment).