Proper noun
CIAU
(Canada, sports) Initialism of Canadian Interuniversity Athletics Union: now called CIS - Canadian Interuniversity Sport.
The CIAU Institute is distributing 1,400 of the masks to the village of Alfred (for the local A.E. Crandall Hook and Ladder Co., fire and ambulance service; Alfred Police Department; U.S. Post Office; and essential business). Source: Internet