I cant really answer that, dont know the guidelines or criteria, however the organization I applied with was not a University. It was www.volunteerhq.org I read amoney3 previous post and applied for a medical volunteer program with that site he recommended. My package: my nursing license and all certifications, letter from the organization, booklet that gave a discription of the project and a letter from me. I got approved in little over a month. I ask for a week they gave me 2 ( 4days before and 3 days after) .