San Francisco Ballot Initiatives and Propositions: How They Work

San Francisco's ballot initiative and proposition system is one of the most active in California, giving voters direct authority to enact, repeal, or amend laws and the City Charter — bypassing the normal legislative process when sufficient public support exists. The mechanism operates under a layered framework of California state law and the San Francisco City Charter, which together define who can place measures on the ballot, what signature thresholds apply, and how competing measures interact. Understanding the mechanics matters because ballot measures in San Francisco have authorized billions of dollars in bond financing, restructured city departments, and overturned decisions made by the San Francisco Board of Supervisors.

Definition and scope

A ballot initiative is a legislative or constitutional measure placed before voters for a direct decision rather than enacted through an elected body. In San Francisco, the term "proposition" is used formally on the ballot, and it encompasses five distinct instrument types: charter amendments, ordinances, declarations of policy, bond measures, and advisory questions.

Scope of this page: This page covers ballot measures that appear on San Francisco municipal election ballots and are governed by the San Francisco City Charter and the California Elections Code. It does not address California statewide initiatives (governed separately under California Constitution Article II), federal referenda, or measures placed on ballots in surrounding Alameda, Marin, San Mateo, or Contra Costa counties. Measures affecting regional bodies such as BART or the Metropolitan Transportation Commission are also outside the scope of this page, though San Francisco's role in Bay Area regional government shapes how such measures interact with city policy.

Charter amendments — changes to San Francisco's foundational governing document — require a two-thirds vote of the Board of Supervisors to be referred to voters, or a citizen petition gathering signatures equal to 10% of the votes cast in the last mayoral election (San Francisco City Charter, §14.100). Ordinary ordinances placed by initiative require signatures equal to 5% of that same baseline figure.

How it works

The lifecycle of a San Francisco ballot measure follows a defined sequence governed primarily by the California Elections Code (Division 9) and the City Charter.

1. Drafting and filing: A proponent files a proposed measure with the San Francisco Department of Elections, along with a filing fee or a fee waiver petition.
2. Title and summary: The San Francisco City Attorney prepares an official title and summary within 15 days of filing (California Elections Code §9280).
3. Signature gathering: Proponents have 180 days to collect qualified signatures. The threshold is 5% of votes cast for Governor in the last gubernatorial election for ordinances, or 10% for charter amendments (California Elections Code §9255).
4. Signature verification: The Department of Elections verifies a random sample. If the sample clears the threshold, the measure is certified; if not, a full count is conducted.
5. Ballot placement: Certified measures are placed on the next eligible election. San Francisco consolidates most measures onto the June primary or November general election.
6. Arguments and rebuttals: Proponents and opponents each submit up to 300-word arguments for inclusion in the voter information guide (California Elections Code §9282).
7. Fiscal analysis: The San Francisco Controller's Office prepares a fiscal impact analysis for each measure, which is included in the voter guide.
8. Election and canvass: Voters cast ballots; the official canvass is certified within 28 days of the election under California Elections Code §15300.
9. Effective date: A successful measure generally takes effect 10 days after the vote is certified unless it specifies a different date.

The Board of Supervisors may also refer measures to the ballot by majority vote — a path that requires no signature gathering and is the most common route for bond measures.

Common scenarios

Three scenarios account for the majority of San Francisco ballot activity:

General obligation bonds: The Board of Supervisors refers a bond measure to voters. Passage requires approval by 66.67% of voters under California Constitution Article XIIIA (California Constitution §1(b)(3)). Approved bonds are administered through the San Francisco Controller's Office and tracked through the city's capital planning process. San Francisco voters approved a $600 million affordable housing bond in November 2019.

Charter amendments by citizen petition: Community coalitions gather the required signatures to force a change to the City Charter — common in cases where advocates believe the Board of Supervisors will not act. The San Francisco Ethics Commission and other oversight bodies have had their structures modified this way.

Competing measures: San Francisco's ballot frequently includes competing propositions addressing the same subject — one placed by the Board and one by citizen petition. When two conflicting measures both pass, California law provides that the one with the higher affirmative vote prevails (California Elections Code §9092).

Decision boundaries

Not every question can be placed before voters. California law and the City Charter impose strict boundaries:

• Administrative acts — decisions that are purely executive in nature (such as individual personnel decisions or specific contract awards) are not appropriate subjects for initiative.
• Appropriation measures — citizen initiatives cannot directly appropriate city funds; only the Board of Supervisors can originate budget appropriations under the City Charter.
• Single-subject rule — California's single-subject rule (California Constitution Article II §8(d)) requires that each initiative embrace only one subject. Measures violating this rule are subject to legal challenge and invalidation.
• Preemption — state or federal law that fully occupies a field preempts local measures. San Francisco's relationship to California state government means state preemption is a recurring litigation issue for local ballot measures touching rent control, taxation, or criminal justice.

The distinction between a legislative act (eligible for initiative) and an administrative act (not eligible) is frequently litigated. Courts apply the test articulated in Associated Home Builders of Greater East Bay, Inc. v. City of Livermore (1976) 18 Cal.3d 582, which examines whether the act establishes policy or merely executes existing policy.

Voters navigating San Francisco's election system more broadly — including ranked-choice voting rules and candidate filing procedures — can find a consolidated overview of the city's civic structure at the San Francisco Metro Authority index.

References

• San Francisco City Charter — American Legal Publishing
• California Elections Code — California Legislative Information
• California Constitution, Article II — Initiative and Referendum
• California Constitution, Article XIIIA — Tax Limitation
• San Francisco Department of Elections
• San Francisco City Attorney's Office
• San Francisco Controller's Office
• San Francisco Ethics Commission