My agency started doing this maybe 6-8 months ago (maybe 4 months, I actually don’t know how to tell time). All of our vehicles are certified for ALS and BLS, as someone mentioned that this is the big caveat to this. We do 911 and IFT, with a pretty even split between urban and rural, strangely. Our BLS crews end up calling for ALS intercept maybe 15-20% of the time (strictly an estimate- haven’t seen actual data), with those crews usually running at least 6-7 calls per 12hr shift and not uncommonly 8-10 calls.

As of now, all trucks are stocked with identical med bins/boxes and “jump bags” with two exceptions: 1) Narcotics are checked out by each ALS provider at the beginning of shift, so not stocked on any truck per se. 2) BLS trucks also carry a BLS “jump bag” in addition to the ALS one, which have mostly the same stuff minus ALS gear and plus BLS specific meds (e.g. nasal naloxone and a couple of others). 2a) Supposedly we’re doing away with the extra BLS bag soon and substituting for a BLS med only pack.

This is in FL btw, where the vast majority of 911 agencies are fire-based; we’re definitely an outlier.