Does CA Single Sign-On needs a license file for CA Directory ?

Document ID : KB000077181
Last Modified Date : 12/04/2018
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Question:
I'd like to know if you need a license file for running CA Directory
12.0 SP18 CR6 with CA Single Sign-On ?
Answer:
You don't need any License file as it has its 
"license bits of code removed a while back." 

CA Directory/SiteMinder License Validation 
https://communities.ca.com/message/241895331 

So said, as long as you've got your legal contract enforced for it,
you can run it.