Here in the PRNY, it varies from county to county. My county has added a concealed-carry upgrade to the pistol permits, but they're only doing 60 a month (out of 10,000 or so that they figure would want it). There's an 8-hour course for the upgrade, which is capped by a shooting course to demonstrate that you can actually use the handgun, and hit something with it. The general guidance is that one should do the shooting portion with the largest chambering they have, because there's DAs in our area (in other counties) that would prosecute someone for using a .45 to defend themselves, if they took their CC qualification with a .22, as an example. I ran my .45 Glock yesterday at the distances that I'll be shooting the course at soon, and I should do fine when I take the test.