1.A panel of three people: the director, two lead program analysts. 2.The difficult part is to make it to the best-qualified pool and wait until the hiring manager exhausts the CTAP/ICTAP and veterans then it's your turn. OPM's job is to rate based on your education, experience, how your skills match what the job requires (look for keywords). There are tips on govjobs.gov and other website. You really need a good resume (not a typical private sector resume) 3.they are friendly and try not to scare you. 4. A set of questions on a sheet they have to rate. 10% each for 10 questions 5. Takes about 60 mins.