How to apply for Cal Grant 2018-2019!!

I am a prospective Fall 2018 transfer student, and I’m trying to apply for Cal Grant. This is my first time applying for it, and I’m confused of the process.
It says that I have to have my most recent institution submit a certified GPA directly to the student aid commissions. What exactly is a certified GPA? Is that the same thing as a transcript? I’ve been looking online for hours and I can’t make any progress.
I have attended two CCs but one of them I only took one class, but that happens to be my most recent college. Should I have both institutions submit the certified GPAs, or just that one recent one?

If it helps any, I’m applying for the Cal Grant A.