There are a number of existing toolkits to assist in the building and implementation of the OEND program. 

1. The SAMHSA Overdose Prevention and Response Toolkit provides background on a number of naloxone-related topics and contains specific educational priorities for various audiences: https://store.samhsa.gov/product/overdose-prevention-response-toolkit/pep23-03-00-001 
2. The NIH HEAL OEND website contains a number of OEND resources, including expert videos on naloxone, quick guides to evidence-based naloxone-related services, and the OEND Outreach Manual from the HEALing Communities Study. https://hcs.rti.org/src/docs/KY-Outreach-Manual-en.pdf
3. The CDC Naloxone Toolkit contains training modules, interactive cases, and fact sheets relating to opioid overdose education and naloxone distribution: https://www.cdc.gov/overdose-prevention/hcp/toolkits/naloxone.html