Political Reform Act of 1974: mass mailing prohibition.

The Political Reform Act of 1974 prohibits sending mass mailings at public expense. The act defines "mass mailing" as over 200 substantially similar pieces of mail not including form letters or other mail that is sent in response to an unsolicited request, letter, or other inquiry. An existing regulation adopted by the Fair Political Practices Commission prescribes criteria for mass mailings that are prohibited by the act and for mass mailings that are permissible under the act.