Understanding regulated treatment access pathways to veterinary medicines in development, or to commercially available medicines in the US or abroad is essential for safe and effective use. This includes the definitions, legal practice, regulatory procedures and practical implications for treatment use. This presentation discusses the key regulatory categories relevant to treatment access pathways to veterinary medicines: FDA conditionally or fully approved drugs, Indexed, Emergency Use and Personal Importation. Each category has distinct criteria, applications and requirements, that may influence a practitioner’s ability to utilize specific treatments legally and effectively.