UEFI Kickstart

How can I configure a RHEL 7 kickstart script to install for both BIOS and EFI systems?

Right now my kickstart only works on non-EFI systems but I'd like it to work on both and choose whether to use EFI or not. I'm assuming I need to add an if statement in the %pre section but I can't find any documentation or examples anywhere. Red Hat's DVD iso works for either and I'm not entirely sure how it does that.

Thanks!