I asked Mr. Google, he gave me lots of possibilities, here is one of them.

In part:

"Q: Can I certify a copy of a passport or a driver's license?
A: A Notary may certify the copy if law permits Notary-certified copies. An alternative in states not authorizing Notary-certified copies, is to perform a "copy certification by document custodian," whereby the holder of the original document certifies the copy in a written statement, and the Notary executes a jurat underneath the signed statement."

So I guess it varies depending on which state you live in. I suspect that googling something like "notarizing passport CA" will give more info...