UCSD Transfers OR students plz explain

<p>I am at a community college.I have been to 2..so far the one i am at i will have completed about 12-16 units. The one that i atended in the past has 12 units already completed. I am on the UCSD transfer website and i am confused. I wanted to know if i can transfer with a minimum of 30 units ( WITHOUT TAG)..if u dont understand what i mean, plz check the website for transfers cuz i dont get it...
i want to do most (if all) my pre med requistes at UCSD instead of a cc</p>