All pesticide application equipment applying professional plant protection products must be tested. The requirements are contained in the Plant Protection Products (Sustainable Use) Regulations 2012 - Sustainable Use Directive (SUD).
Red Tractor Crops and Fresh Produce Schemes currently require annual testing of boom sprayers over 3 metres, granular applicators applying nematicides and fogging machines. All other machines use the timescales as set out in the SUD.
Red Tractor Livestock Schemes require all application equipment to be tested using the SUD timescales, annual testing is not required.