Originally Posted by Sputnik

You need to get 100hrs within 120 days of your sim check for the check/type to be valid. You'll get 35 minimum during your IOE (flying with a Check Airman after your sim check). So basic flow is: sim check, 2-3 day observation trip in the jumpseat, then 5-6 days of IOE trips with the last day being your line check.

Until you get that 100hrs, I believe you're prioritized for reserve callout. It happened so quickly I didn't have time to research that whole shebang.