I applied online. The process took 6 months. I interviewed at US Defense Logistics Agency (Oklahoma City, OK) in Jan 2016
Interview
Qualify and refer prior to interview. Behavior based questions from panel. Interview was short, but quite intense. They were looking for very specific answers. Studying job duties and requirements prior to the interview was quite helpful.
Interview questions [1]
Question 1
Tell us about a difficult situation during work and how you handled it.