What does USRA stand for?

Undergraduate Students Research Awards (SAUS)

United Sportsman Racers Association - Defunct (EA)

United States Racquetball Association (EA)

United States Railway Association - In 1974, superseded United States Railroad Administration, which had been absorbed by the Department of Transportation in 1939 - Terminated in 1987

United States Regular Army (SAUS)

United States Revolver Association (EA)

United States Rowing Association (EA)

United Street Rod Association - Defunct (EA)

Universities Space Research Association (EA)

University Space Physics Association

University Space Research Association (SAUS)