PGP Command Line licensing for cross platforms

Currently using PGP Command Line 10.3 on Windows 7 with a 12 months maintenance subscription (SYMC PGP COMMAND LINE 10.3 XPLAT 8 CPU RENEWAL ESSENTIAL 12 MONTHS GOV BAND S) expiring this Sep 2017.  In planning for migrating to the AIX platform, do I need to acquire a new license or simply renew my existing one? Is license valid across platforms?

Thanks!