This is an academic paper that examines the variation in opioid overdose responses among first responders in California. Through surveys with emergency medical services (EMS) directors, protocols, data collection, linkage to treatment, and naloxone distribution were described.
Glober, N.K., Hern, G., McBride, O., Mercer, M.P. (2020). Variations in the California Emergency Medical Services Response to Opioid Use Disorder. The Western Journal of Emergency Medicine, 21(3), 671–676.