the Grand Opening Celebration and Open House on Saturday, September 22. From 11:30 a.m. to 2:00 p.m., Chester County Technical College High School (TCHS) Brandywine Campus will open its doors to the local community and offer student- and staff-led tours of the state-of-the-art facility that replaced the Center for Arts & Technology (CAT) Brandywine Campus in Coatesville.