Lengthy. First, you will apply. Then two months later, you might get a call for a phone interview. If that goes well, you will be asked to schedule your PS473 Exam - DO NOT buy any test prep materials, the test is not difficult. If you get a passing grade on that, you will get an in-person interview to go over your resume. This is just filler while they run a background check. Then, three months after you initial application, you will be expected to get a drug test, fingerprint card, and start training within the next 24 hours. Congratulations!