Christiansburg High School, in Christiansburg, VA, banned vehicles from displaying confederate symbols on campus [story here]. In order to be able to park on campus, students and parents have to sign a contract with the school, and the ban is part of that contract. The school already bans confederate symbols on clothing.
Kettering Schools in Ohio also banned confederate flags on school property in any circumstances [story here]. They’re also providing diversity training for students and staff. The comments section of the news story has the typical racism you see from confederate flag supporters.