Switching majors just requires meeting any potential requirements prior to switching, and getting a couple signatures. You’ll need to go on to the department website for the major you want to switch into to determine if they have any prereqs prior to switching. If there aren’t any, you’re good to go once you’ve been at UCD at least a quarter, if you have at least a 2.0. If there are, you’ll need to complete those. And naturally, if there’s a GPA requirement higher than the general 2.0 requirement, then you’ll need to meet that too. But you’ll be allowed to switch as long as you meet any requirements.