CALIFORNIA CODES
PENAL CODE
SECTION 528-539

529. Every person who falsely personates another in either his private or official capacity, and in such assumed character either:
1. (stuff about marriage)
2. Verifies, publishes, acknowledges, or proves, in the name of another person, any written instrument, with intent that the same may be recorded, delivered, or used as true; or,
3. Does any other act whereby, if done by the person falsely personated, he might, in any event, become liable to any suit or prosecution, or to pay any sum of money, or to incur any charge, forfeiture, or penalty, or whereby any benefit might accrue to the party personating, or to any other person;
Is punishable by a fine not exceeding ten thousand dollars ($10,000), or by imprisonment in the state prison, or in a county jail not exceeding one year, or by both such fine and imprisonment.

538a. Every person who signs any letter addressed to a newspaper with the name of a person other than himself and sends such letter to the newspaper, or causes it to be sent to such newspaper, with intent to lead the newspaper to believe that such letter was written by the person whose name is signed thereto, is guilty of a misdemeanor.