Official Results
Yes votes:
8,663,159 (63.1%)
No votes:
5,070,772 (36.9%)

Requires background check and Department of Justice authorization to purchase ammunition. Prohibits possession of large–capacity ammunition magazines. Establishes procedures for enforcing laws prohibiting firearm possession by specified persons. Requires Department of Justice's participation in federal National Instant Criminal Background Check System. Fiscal Impact: Increased state and local court and law enforcement costs, potentially in the tens of millions of dollars annually, related to a new court process for removing firearms from prohibited persons after they are convicted.

For more information on this proposition, including voter resources, in-depth analysis, and endorsements, please see the California Choices web site.


Proponents of Proposition 63 believe the measure will close loopholes to prevent mentally ill and dangerous criminals from obtaining guns. They claim the measure will strengthen background checks, introduce important new regulations and reporting requirements, and ensure that felons are not able to obtain guns. Supporters believe the measure will save lives that could be lost to gun violence.


Opponents of Proposition 63 believe the measure will burden law abiding citizens without keeping violent criminals and terrorists from obtaining firearms. They claim that other methods that are more effective in stemming gun violence will suffer because Proposition 63 will divert law enforcement resources. Opponents believe that resources should be used to hire more officers and to target, investigate, and prosecute dangerous individuals and terrorists.