How can I change my major as a freshman after due date?

So the title speaks for itself. The deadline has passed, and I was wondering how I could change my major for the following UC Schools:
Los Angeles, Davis, Irvine, Santa Barbara, and San Diego

Generally, you can change majors easily after yore admitted and have decided where to attend. Of course, this doesn’t apply for engineering majors but everything besides that should take nothing more than a simple email. In UCD’s case, you can change your major to anything after your first quarter with ease(except CoE).

Unless you’re trying to change your major because you realized its impacted and would affect your admission chances, I wouldn’t worry about it.

Most UC’s will let you change majors (depending upon impaction) after the 1st semester or quarter of your Freshman year. I would check the individual UC websites about the change of major instructions.