CCI has 1650 acres including Level I ("Open dormitories with a secure perimeter") housing; Level II ("Open dormitories with secure perimeter fences and armed coverage") housing; Level IV ("Cells, fenced or walled perimeters, electronic security, more staff and armed officers both inside and outside the installation") housing; a Security Housing Unit (SHU, which is "the most secure area within a Level IV prison designed to provide maximum coverage"); and a Reception Center (RC) which "provides short term housing to process, classify and evaluate incoming inmates."