A webinar series on the use of new approach methodologies (NAMs) in ecotoxicology co-organised by the European Medicines Agency (EMA), the Health and Environmental Sciences Institute (HESI), the National Institute for Environmental Studies (NIES, Japan), PETA Science Consortium International e.V., the US Environmental Protection Agency (US EPA), and the US Food and Drug Administration (US FDA). The fifth webinar of our Eco-NAMs webinar series will be held on December 3. The webinar “Enhancing regulatory application of ecotoxicological QSARs” will feature presentations from Dr. Edoardo Carnesecchi (EFSA) and Dr. Salvador Moncho Escrivà (ECHA). The PSCI webinar webpage is here: https://www.thepsci.eu/eco-nams-webinars/