Nominations are open for the SIGACT Distinguished Service Prize.
More information is available at the SIGACT web site.
Here's the key info:
Nominations can be made by any member of the Theory of Computing community and should contain a statement of no more than 500 words explaining why the candidate deserves the award. The nomination can also include an additional separate listing of service activities, additional support letters, and other supplemental material such as a pointer to the candidate's CV. The nomination must include the name, postal address, phone number, and e-mail address of the nominator. Nominations are to be submitted electronically in PDF format by April 1, 2016, to the chair of the selection committee, Lane A. Hemaspaandra, at email@example.com. Please put "SIGACT Distinguished Service Award Nomination" in the subject line.