This 2-day virtual workshop will discuss Clustering and Classification Methods as part of NAMs and their applications to facilitate toxicology research and provide information for risk assessment. The workshop will introduce the concept of similarity and the different classification and clustering approaches as well as their uses for scientific toxicity research and risk assessment. The invited speakers and expert discussants will help to identify best practices and guidelines for the application of these approaches. Participation from attendees to round table discussions will be encouraged. Elena Fioravanzo will be attending on the expert panel. For details and to register: https://nih.zoomgov.com/webinar/register/WN_lySs5pVDQNaRBuyjdoUM3A