On February 12, 2014 the law was put in force about the sustainable use of pesticides, in order to meet the standards and to implement EU rules. The law contains provisions which are in conformity with Directive 2009/128 / EC of the European Parliament and of the Council of 21 October 2009 establishing a Community framework of action to achieve sustainable use of pesticides ( OJ L309,24.11.2009 ). The law consists of 37 articles divided into 13 chapters. Chapter 6 refers to the sprayers. The main aim of the research is come to the knowledge of the technical condition of machines for plant protection in the Municipality Drenje and with technical inspection to determine the current state of the tested machines . During the testing of the technical systems large number of research was implemented, both abroad and in Croatia. When Croatia joined the European Union the new law came to force and family farms was needed to be adjusted. In the European Union in force is the directive about the plant protection 2009/128 / EC and 2006/42 / EC , which is the basic standard for EN 13790 ( I, II ). During the testing of the agricultural sprayers the equipment that was used is the equipment of the Institute for Mechanics Faculty of Agriculture in Osijek, who has all the equipment for tests of technical systems in plant protection according to the standard EN13790, which is the basis for the implementation of Directive 2009/128 / EC and 2006/42 / EC of the European Union. Standard EN13790 contains the values that define the validity of each element of the sprinkler, also prescribes the standard procedure to establishing the validity of the same, and includes instructions for testing procedure. 12 technical systems were tested in plant protection who carried machines with tank volume of 440 liters to 1000 liters and working widths from 8 to 16 meters. From a total of 12 machines tested, only 7 currently meets the criteria defined by the law of the sustainable use of pesticides ( EN 13790 ). The most common defects/bugs that appear are defective nozzles, pressure gauges, pumps and dripping liquids on places of the sealing and lines. Replacing the nozzle and the pressure gauge does not require any effort and can be done quickly and does not require resources, therefore, if the owners of the machine where to be motivated to use the proper protection of the machine, and would certainly have satisfied and it would be much more correct machines according to the laws laid down by standard EN 13790.