I applied online. I interviewed at US Grain Inspection, Packers, & Stockyards Administration
Interview
Just like any other government interview process, lots of very specific questions. Took about an hour to complete, and heard back about the position within 2 weeks. The overall process took about 50 days.
Interview questions [1]
Question 1
None of the questions were terribly difficult, just make sure you have an example for each question that is asked.