Proposition 13 is a legislatively referred constitutional amendment prohibiting the reassessment of property values due to seismic retrofitting work.

Proposition 15 is an initiative statute creating a public campaign finance system for Secretary of State elections.

Proposition 16 is an initiative constitutional amendment requiring a two-thirds majority to establish or expand public electricity providers.

The seat of the 37th State Senate district was vacated by John J. Benoit after he was appointed to be Riverside County supervisor on November 30, 2009.

The seat of the 43rd State Assembly district was vacated by Paul Krekorian after he was elected to the Los Angeles City Council on December 8, 2009.