I applied through college or university. The process took 2 weeks. I interviewed at Puerto Rico Federal Affairs Administration (New York, NY) in Aug 2015
Interview
Warm, not too difficult. My interviewer was very friendly even when I did not know much about Puerto Rico's politics. They were very interested in my dedication to my studies and willingness to do work and research.
Interview questions [1]
Question 1
Do you know what is going on in Puerto Rico right now?