San Francisco voters approved Proposition A in March 2002 that adopted instant runoff voting (also known as ranked choice voting) to elect local offices in San Francisco. The first election occurred in November 2004. For that election, the Board of Supervisors funded and the Department of Elections conducted a voter education and outreach campaign leading up to the first election. Approximately $750,000 was spent by the Department of Elections to educate the 440,000 registered voters in San Francisco.
For the complete description and evaluation, please see the attached PDF file below.