It doesn’t. However, for all practical purposes, if you are applying in your senior year, I can’t see how else you can establish (proof) full-time residency for a year prior to enrollment to qualify for IS tuition as a freshman. If you want to be “reclassifed” as IS, then that is a horse of a different color (meaning OOS tuition for that first year while establishing residency for remaining years - things (from a practical standpoint) you need to change are your driver’s license, insurance, etc). They look very critically at all the “evidence” of residency, and if there is any question, you won’t get it. However, if you attend a high school in Maryland, and have other things like license, etc that’s pretty hard to refute that you are actually residing in Maryland. If you show “proof” of residency but attend a high school in California, you will definitely be hard-pressed to prove it’s not a move on paper only for tuition purposes.