This technical report reflects the outcome of the meeting on general issues for microorganisms (Fate‐Ecotoxicology joint session) in support of the EFSA peer review of microbial active substances under Regulation (EC) No 1107/2009. Exposure and hazard characterisation for environmental risk assessments of microorganisms were discussed in relation to the new data requirements for microorganisms published in 2022. Conclusions and recommendations on the topics identified by the Member States were made.
