I'm in a process for Block Operator Trainee. From my experience, I went to the orientation on 12/21/17 and took the cognitive test and passed, went to S & D overview on 1/31/18 and took the exam on 2/21/18 and passed, then went to the Basic training from 2/26/18 - 3/9/18 and passed, then went to the interview on 3/28/18. I still haven't done Background check and Medical yet but I think those are the last step before getting into class.