2007 California Corporations Code Chapter 3. Literature

CA Codes (corp:35200)

35200.  Any subversive organization shall not send, deliver, mail,
or transmit, or suffer or permit to be sent, delivered, mailed, or
transmitted, to any person in this State who is not a member of the
organization any anonymous letter, document, leaflet, or other
written or printed matter.  All letters, documents, leaflets, or
other written or printed matter issued by a subversive organization
which are intended to come to the attention of a person who is not a
member of the organization shall bear the name of the organization
and the names and residences of its officers.