The Advancing Lifesaving Efforts with Rapid Test strips for Communities Act, or ALERT Communities Act, seeks to enhance public health efforts against drug overdoses, particularly those involving fentanyl and xylazine. It mandates the training and provision of resources for first responders and community sectors on carrying and facilitating access to fentanyl or xylazine test strips. The bill also requires the Secretary of Health and Human Services, in collaboration with other agencies, to develop and make public research and marketing frameworks for advancing test strip technology. These frameworks will provide standards for manufacturers, emphasize clinical applications, and guide authorization pathways for new test strip devices. Furthermore, the legislation directs a comprehensive study on the impact of drug checking supplies, including test strips, on overdose frequency, overdose deaths, and engagement in substance use disorder treatment, with a report due to Congress within two years.