See below for the practice statements on naming.
Types of Names
The Subject names in a Certificate comply with the X.501 Distinguished Name (DN) form.
Need for Names to be Meaningful
CA Certificates must identify the subject as a CA and include the Customer organization name. The RA is responsible for ensuring the Subject names in Subscriber Certificates are meaningful to Relying Parties.
Anonymity or Pseudonymity of Subscribers
No stipulation
Rules for Interpreting Various Name Forms
No stipulation
Uniqueness of Names
CA distinguished names shall be unique.
Recognition, Authentication, and Role of Trademarks
No stipulation.