Please congratulate William Cao for being selected as a Siemens Semifinalist.  This year out of the more than 1860 projects submitted, 491 students are being recognized as semi-finalists. This select group of students and their notable projects are judged to determine who advances on to 6 regional competitions held in November. Individual and team winners of the regional contests earn the opportunity to compete in the National Finals held at The George Washington University in Washington, D.C. in December.