actually, from listening at least anyway most of amr's stuff both on the company radio as well as CMED (in the new haven area _south central) is plain english although they do use signal 12 for a DOA as well as code 100 and code 200 and signal 16 drunk and 17 psych, then they use new haven fd's 99 for message received. A long time ago they actually had a code sheet for everything right down to bathroom break (lol) but haven't heard those in ages. not sure about the rest of the state