COMMERCE PUBLIC SCHOOLS 2007-2008 Calendar https://cps.tandem.co/ Key dates for COMMERCE PUBLIC SCHOOLS. en-us 9/3/07 Labor Day Holiday https://cps.tandem.co/index.php?type=key_date&action=details&id=1240 1240-commerceokus@intand.com 5/26/08 Memorial Day -- No School https://cps.tandem.co/index.php?type=key_date&action=details&id=1241 1241-commerceokus@intand.com 5/29/08 Last Day of Classroom Instruction https://cps.tandem.co/index.php?type=key_date&action=details&id=1249 1249-commerceokus@intand.com