The conclusions of the EFSA following the peer review of the initial risk assessments carried out by the competent authorities of the rapporteur Member State, Slovenia, and co‐rapporteur Member State, Finland, for the pesticide active substance rimsulfuron are reported. The context of the peer review was that required by Commission Implementing Regulation (EU) No 844/2012. The conclusions were reached on the basis of the evaluation of the representative uses of rimsulfuron as an herbicide on maize, potato and tomato and updated following the request to update the risk assessment of rimsulfuron in view of the renewal process under Commission Implementing Regulation (EU) No 844/2012. The reliable end points, appropriate for use in regulatory risk assessment, are presented. Missing information identified as being required by the regulatory framework is listed. Concerns are reported where identified.