The following post is an old story from 2006; back from senior year in high school. After going through the usual senior-year college admissions rounds, I had been rejected by U.C. Berkeley. Berkeley was my first choice school and it did not have a wait list (although I hear that as of 2010, Berkeley does have a wait list). Yet I somehow went to Berkeley for undergrad. Have I been playing a clever ruse on you all this time? That would make for an entertaining post; but alas, I got into Berkeley through the appeals process (that's right, it actually works). To those who may at some point have to go through this, here is what I can recall about how the system works.
The Berkeley rejection letter is/was a website accessible from the account that you created when you applied. Towards the bottom of the letter, there will be a place where you can read more about appeals. It may have changed since I applied, but it is worth noting/emphasizing that Berkeley made the appeals information public to everyone who had gotten rejected. You don't have to call the admissions office or anything like that to get the appeal off the ground. In other words, appealing a Berkeley admissions decision is a well-established thing to do. Their memorandum as of 2006 was:
We strongly discourage letters of appeal unless you can provide significant new information for us to consider. Our freshman selection process involves a careful, individual reading of each application and it is very unlikely that we will choose to reverse our original decision. If you do have significant new information to present and decide to appeal our admissions decision, please submit your request in writing, postmarked by April 15, 2006. Include your UC application ID number in your letter and submit it with all accompanying materials (i.e. seventh semester grades or a letter of recommendation) in a single envelope.
"Our freshman selection process involves a careful..." blah, blah, blah. This is just war talk in the trenches. If you really want to go to Berkeley, don't let this discourage you from fighting your rejection! You have nothing to lose except lack of effort.
Aside: You might be wondering why Berkeley, or any other school, would want to attract attention to itself through a public appeals process. My guess is that the appeals process is/was Berkeley's wait list, as they did not have a real wait list the year that I applied. Now that they do have a real wait list, I don't know if they will continue with appeals.
What follows is a summary of what you should put in your appeal package. All required parts of the application are marked '[solicited]':
After you submit your appeal, the process will take a half month to go through. I got accepted on May 1st; right after I sent in my non-refundable S.I.R. to another school as a matter of fact (somewhere was better than nowhere, after all).
The appeal selection process is last man standing. Picture a bunch of Berkeley appeal candidates nervously chatting on college confidential trying to pass the time. Basically: one candidate after another was rejected; by May 1st, those left standing got accepted. Based on information at hand, this was ~5% of those who appealed.