3.2.1.4.3.2.44 PropID = 0x0000002C (CR_PROP_LOCALENAME) "CA Locale Name"

The client has request the locale of the CA. The CA SHOULD return its locale in the "Language-Region" format as specified in the [RFC4646]. The CA MUST return it as a [UNICODE] string, through a CERTTRANSBLOB (section 2.2.2.2) structure.<105>