There is a public access program in my area that started about 4 years ago. You had to take a course, and in the end you were written a prescription for 2 doses of narcan. From what I understand now it’s available pretty much over the counter. We have seen some unintended effects such as dealers...
Special K,
We are currently performing it in the area where I work. I work in the US and the area is still mostly volunteer fire departments/rescue squads but very few, if any left at all, don't have paid EMS, if not full time per diem. We are currently on our 3rd year with the program in place...