When you are accepted at IU, you are automatically admitted to University Division (UD). While a student in UD, you will work to fulfill the requirements for admission to the major of your choice. Almost all beginning students start their IU experiences this way.
However, a few IU schools also offer direct admission to outstanding students. When you receive direct admission, you are able to begin your college career as a student in the program of your choice. That means you do not later have to apply for admission to your major.