There are two stages to the process. Firstly, the nominations require a name, title, and a few sentences about the person you are nominating by the 1 May deadline. The second stage occurs after the May deadline when the Awards Committee will ask the nominator to submit more detailed supporting material about their candidate (nomination letter, CV, list of publications, and letters of support).
Nominations are now closed for 2019.
Mike Armstrong (to the right) received the Outstanding Achievement Award from the Awards Committee Chair Carl O'Brien at the 2018 ASC in Hamburg, Germany.