<p>This question has been asked a lot.
here is the berkeley website but same rules apply to all UC colleges
[Establishing</a> Legal Residence - Office Of The Registrar](<a href=“http://registrar.berkeley.edu/Residency/establish.html]Establishing”>http://registrar.berkeley.edu/Residency/establish.html)</p>
<p>"If you will not reach age 24 by December 31 of the year in which classification as a resident is requested, and are not dependent upon a California resident parent (biological or legally adoptive only) for tuition purposes, you will be required to satisfy the University’s self-sufficiency requirement.</p>
<p>It should be noted that this requirement makes it extremely difficult for most undergraduates who do not have a parent domiciled in California to qualify for classification as a resident at a University of California campus."</p>
<p>So unless your parent wants to move to CA, it is extremely difficult. I’d consider private colleges for the same money or your in-state flagship.</p>