The ALERT Communities Act requires the federal government to develop research and guidance for fentanyl and xylazine test strips, which are tools that can detect dangerous substances in drugs. The bill directs the Department of Health and Human Services to create frameworks for manufacturers developing and testing these detection strips and to study how access to test strips affects overdose deaths and treatment engagement, with findings due to Congress within two years. The legislation also requires first responders and community workers to receive training on carrying and using these test strips. The bill affects public health agencies, drug manufacturers, first responders, and communities dealing with opioid overdose, but does not specify funding amounts or allocate new appropriations for these activities.