The European Food Safety Authority (EFSA) assessed the 2024 post-market environmental monitoring report on genetically modified maize MON 810 at the request of the European Commission. This maize expresses the Cry1Ab protein. EFSA applied a weight-of-evidence approach and considered information provided by the consent holder and the Competent Authorities of Portugal and Spain. EFSA concluded that the report provides no evidence of unexpected adverse effects on human and animal health, or on the environment associated with the cultivation of maize MON 810 in 2024.