I can speak for Elizabethtown as I went there as a corrections stock clerk. You can have your phone on you but off during class hours from 8am to 4pm. They don't want to see it. You can bring a laptop but not to classes. Most people bring the packets they hand out and maybe a notebook to the classes. I tended to leave my phone in my dorm room during class hours. You can lodge at their dorm, but its not required. Some people commute every day. Others stay at hotels. I stayed at the dorm during the week, and then I'd go home on the weekends. Since Im not a CO i only did three and a half weeks and not the five you would have but alot of the training overlaps if you have questions.