You can mouse over the fat yellow lock icon (usually found at the bottom of your screen) to check that your laptop is encrypted. Check Point encryption should be installed on all MITS-supported laptops. It uses the standard Windows login screens so it may not be obvious that encryption is installed.
PGP Whole Drive Encryption should be installed on all other UCLA-owned laptops. On boot up, the PGP BootGuard login screen will come up, so it is easy to tell when PGP laptop encryption is used.