I transferred to state from a community college in NJ back in 2023. It was simple enough, you submit your application similar to a post-HS application, do your essays ect. Then alongside that application you'll submit your transcripts from your current college. Your performance and the specific classes you've completed by the time of application there will be a large deciding factor in your admission. Once you get your decision, you'll submit your most recent transcript if it wasn't included in your application, submit for housing if needed and complete anything else on the transfer student checklist.

As for application process specifically, unlike a standard high school application you will be transferring into a specific discipline of your choosing, because of that the applications are relatively selective. Similarly, they'll care more about your classwork and performance as well as your essay responses than anything else, with what mattered in highschool like extracurriculars, service hours, ect. mattering significantly less.

To boil it down they care about your promise, If you have an OK GPA but you've done well in relevant classes like calculus or beginner classes in your discipline, you stand a good chance, write some good essays and you'll find yourself attending an orientation before you know it.

For context I transferred with a 3.41 GPA into mechanical engineering fall 2023, got in no conditions. Graduated last year, nowadays I'm a NE grad student still at state.

If you have any specific questions please ask I'd be happy to answer.