You're going to have to do research school by school. The prereqs for nursing programs can change by school. I'm guessing you're talking about possibly getting your RN through a CC program and then transferring to a BSN program. There are some accelerated RN to BSN programs, but I don't think any of them will rush you through both programs in 3 years. One nurse told me that she went through a RN to BSN program that took about a year and a half, and she went year round with no time off at all. A lot of clinical hours and classes are required that just can't be scrunched.
If you're talking about transferring from a CC to a BSN college program without getting an RN, you will also need to research whether the BSN program will give you credit for BSN classes that you took at CC. The BSN programs usually (at least based on my D's experience) require that all of the nursing requirements be filled at their own school. If you take a class like nutrition at CC, you may have to retake it.