Batboard

Morning, I have a few M-10 mobiles VHF that I was looking on the web for narrow band compliance. Can these be programmed for narrow band use? From what I have seen the answer can be yes and no but I want to be sure before I put them into an install for sure. The rest of the radios that are used for this site (CP200, P1225, HT1550) are all in the standard and can be easily changed for narrow band.
Let me know.
Thanks