We carry out groundwater and soil pollution risk assessments, and perform analyses to determine the type and amount of residues in water for the national authorisation of plant protection products. We also prepare expert opinions on groundwater and soil pollution, and propose measures for the authorisation of plant protection products in Slovakia on the basis of written requests from customers (producers) or from companies entrusted by customers, or on the basis of a request received from the registration authority (i.e. from the Central Control and Testing Institute in Agriculture).