Certificate transparency and privately installed certs

Does anyone know whether the certificate transparency feature as promoted by Google can/will apply to private installed CAs?

It seems like Chrome is already enforcing CT in some situations, presumably by auditing public CA logs. For private CAs that do legitimate Man-in-the-middle, there obviously won't be public CA auditing information, and it would be good to know that Chrome won't balk at that.

The CT enforcement policy applies only to public CAs, not self-signed or private CAs. The closest thing I could find confirming this was this tweet from Google's Ryan Sleevi.