Your health and safety responsibilities will not change when the UK leaves the EU. This guidance is under review.
Inappropriate use of plant protection products or accidents involving them can have potentially wide-ranging adverse impacts. Arrangements have been put in place to carefully monitor the way products are applied and effects which they have. These arrangements also help us to ensure that they are behaving are predicted by the risk assessment process.
The reasons for use, amount applied, practice of users and impact these chemicals have are summarised in an annual report of the Pesticides Forum.
A range of information is used to assess the impact of plant protection product use. HSE is responsible for operating some of these controls. In particular:
Codes of Practice
Pesticide/Plant Protection Product Databases
Application forms