Here are the most current guidance documents on issues related to risks from Fentanyl and fentanyl analogues (carfentanil, sufentanil, etc.). A regional guidance document is under development, but these papers are very useful. Please disseminate these widely with your personnel.
Myths and Facts paper from the Office of Health Affairs at the U.S. Department of Homeland Security: http://www.peaf.us/sitebuildercontent/sitebuilderfiles/fentanyl-myths-facts-sep2017.pdf
White House paper. Nicely done..
If you want to know how these were developed, below is the paper that gives the science behind all this, that has been endorsed by numerous medical groups including our RPAB: http://www.acmt.net/_Library/Fentanyl_Position/Fentanyl_PPE_Emergency_Responders_.pdf
Finally, there's a paper from the IAB that is also very good: https://www.interagencyboard.org/sites/default/files/publications/IAB%20First%20Responder%20PPE%20and%20Decontamination%20Recommendations%20for%20Fentanyl.pdf
For short reads (one sheet each) the first two are highly recommended.