Now is the time of the academic year when transferring students receive notification about their university applications. Some students are happy with the results, and some are not.
If you are denied admission to a university, you have the right to submit an appeal of the decision. However, you should appeal ONLY if you have NEW and/or COMPELLING information that was NOT included in your original application. For example, if you have some low grades because of a health problem, and you did not mention that in your personal statement or in the Additional Comments section of your UC application, and if you were denied admission, you might appeal and include documentation of your health issues.
Here are links on appeals information for three of the most popular UC campuses:
Berkeley, http://students.berkeley.edu/admissions/general.asp?id=113&navid=N
Los Angeles, http://www.admissions.ucla.edu/appealstr.htm
San Diego, http://admissions.ucsd.edu/UCSDFall09AppealsProcess.pdf
Other UC campuses, as well as CSU's and private or out-of-state universities, may have appeals information on their websites. Type "admissions appeal" in the search bar of the university's website to search for that information.
Read the information thoroughly and completely, and follow the directions well, especially noting the deadlines. Appeals received after the deadline may not be reviewed.