The Sport Concussion Assessment Tool 3 (SCAT3) supersedes the original SCAT and the SCAT2 published in 2005 and 2009, respectively.
The Sport Concussion Library will maintain the SCAT2 site, however it is suggested that SCAT3 be utilized, as it is the tool approved and published in the recent November 2012 Consensus statement on concussion in sport from the 4th International Conference on Concussion in Sport.