Minimal. They mostly do hiring events, where they send a survey prior, have you come in with all other prospects, ask you three corporate cookie cutter questions like "describe a situation you displayed safety consciousness, then they have you sit outside the interview room for 5 minutes where they make the soon the spot, if you pass they have you do a basic and easy physical fitness test, if you don't they lie and say they'll get back to you instead of just saying no.