Are CODE-1 Plus licenses platform-specific?

CODE-1 Plus licenses are platform-specific.  Each license has serial numbers/CPU IDs and a platform identification code.  Therefore, a license issued for a Unix machine would not work on a mainframe machine because of the serial number and platform identification discrepancy.  If moving to a different platform, please contact Technical Support with the platform and serial number so that a new license can be issued.
UPDATED:  April 21, 2017