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California · November 3, 2026 general election · Statewide ballot measure

Proposition 39: what your vote means

Government-issued identification to vote. On every California ballot. Official sources checked October 21, 2026.

Proposition 39 · Initiative constitutional amendment

Government-issued identification to vote

Official ballot title (quoted exactly)

PROHIBITS CITIZENS FROM VOTING UNLESS THEY PRESENT GOVERNMENT-ISSUED IDENTIFICATION. INITIATIVE CONSTITUTIONAL AMENDMENT.

As printed in the Official Voter Information Guide, California Secretary of State (title prepared by the Attorney General).

A YES vote means:

Voters would have to present government-issued identification to vote in person, and mail ballots would count only if the envelope has the last four digits of the voter’s chosen ID number.

A NO vote means:

A voter’s identity would continue to be confirmed with the voter’s signature.

What it would change

  • Who is affected: all California voters, in person and by mail.
  • New requirements: elections officials would verify the citizenship of registered voters; the state would issue a free voter ID card on request; the State Auditor would review compliance every odd-numbered year.
  • Taxes and fees: none.
  • Fiscal impact (Legislative Analyst): state and local costs of tens of millions to low hundreds of millions of dollars each year.

Official arguments, summarized

Short neutral summaries of the arguments printed in the official voters’ pamphlet. The committees that wrote them are responsible for their content. Read the full text at the link below.

Argument for

Supporters say voter ID has broad support across parties and would increase trust in elections.

Argument against

Opponents say the requirements would add costly barriers for eligible voters and risk exposing personal information.

Arguments and rebuttals, Proposition 39, Official Voter Information Guide

Who supports it and who opposes it

These lists come from official campaign filings (registered committees) and public endorsements, each linked to its source. They are not complete, and SaveYourState does not endorse anyone listed. Lists checked October 30, 2026.

Who supports it

Who opposes it

Official sources

SaveYourState is independent and nonpartisan, not a government site, and does not take positions on ballot measures. This explainer describes effects only, using the official ballot title, explanatory statement, full text, and fiscal impact statement. If anything here differs from those documents, the official documents control.