How hard is it to change schools with the same college?

Colleges and Universities A-Z Georgetown University
1

So for example, I got into Georgetown College (in Georgetown University)
but how hard would it be to change to the business school?

2

Did you think of looking on the web site? http://www.georgetownmeansbusiness.com/ugnews/WebsiteMaterials/InternalApplicationsFAQ.pdf