August is my availability to start training. Delta emails you saying the assessment will come within 24 hours from an airlineapps account and you have 7 days to take it. If you pass or fail you usually find out within a day or two. If you pass you'll get dates to pick for an interview and if you fail you will get a try again in 3 months. (FWIW I know someone who failed and got a new top tier at 3 months and a day and an assessment retake at 3 months and 7 days)