United States - California - AI Disclosure in Political Ads (AB 2355)
California AB 2355 - AI Disclosure in Political Advertising
United States • California
RAI-US-CA-CA2ADXX-2024United States - California - AI Disclosure in Political Ads (AB 2355) is In Force in United States as of 7 Sep 2026, according to leginfo.legislature.ca.gov.
ActTransparency and DisclosureGovernance and OversightCalifornia Assembly Bill 2355, enacted by the California Legislature in 2024, mandates that political committees disclose when artificial intelligence is used to generate or alter political advertisements. Currently in force, the law took effect on January 1, 2025, and is enforced by the Fair Political Practices Commission.
Summary
California Assembly Bill 2355 (AB 2355) is currently in force. The most recent dated milestone occurred on January 1, 2025, when the law officially entered into force across the state. Introduced in the California State Assembly on February 12, 2024, the bill passed the Assembly on May 24, 2024, passed the Senate on August 30, 2024, and was signed into law by the Governor and chaptered on September 17, 2024.
The Act amends Sections 84504, 84504.1, 84504.2, 84504.3, 84504.4, and 84504.5 of, and adds Section 84514 to, the California Government Code, relating to the Political Reform Act of 1974. It mandates that any committee creating, publishing, or distributing a qualified political advertisement must include a clear and conspicuous disclosure stating: 'Ad generated or substantially altered using artificial intelligence.' This rule applies across radio, video, print, electronic, and social media political communications.
The Fair Political Practices Commission (FPPC) is charged with administering and enforcing these disclosure requirements. To compel compliance, the FPPC may seek injunctive relief in court or pursue administrative and civil remedies under the Political Reform Act, including cease-and-desist orders and administrative fines up to $5,000 per violation. Violations of the AI disclosure mandate do not constitute a criminal misdemeanor.
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Read full text ↗Overview
California Assembly Bill 2355 (AB 2355), officially known as the Political Reform Act of 1974: political advertisements: artificial intelligence, represents a significant legislative effort to address the growing concern of artificial intelligence (AI) misuse in political campaigning. Enacted on September 17, 2024, and becoming effective on January 1, 2025, this Act introduces mandatory disclosure requirements for political advertisements that incorporate AI-generated or substantially altered content. The core objective of AB 2355 is to bolster transparency within the political discourse, ensuring that voters are fully aware when the media they consume has been manipulated or created using advanced technological means. This measure is a direct response to the proliferation of deepfakes and other forms of AI-generated deceptive content, which pose a substantial threat to the integrity of democratic elections by potentially misleading the electorate. By requiring clear and conspicuous labeling, the law seeks to empower voters with critical information, enabling them to critically assess the authenticity and origin of political messages before making electoral decisions.
The scope of AB 2355 extends to any political advertisement that features images, audio, or video content generated or significantly modified by artificial intelligence. This includes advertisements related to candidates for federal, state, or local office, as well as those concerning ballot measures. The legislation meticulously defines what constitutes 'generated or substantially altered using artificial intelligence,' providing clear guidelines for compliance. Furthermore, it integrates these new provisions into the existing Political Reform Act of 1974, leveraging established regulatory frameworks and enforcement mechanisms. The Fair Political Practices Commission (FPPC), the state agency responsible for administering and enforcing the Political Reform Act, is tasked with overseeing the implementation and compliance of AB 2355. This strategic integration ensures a consistent approach to campaign finance and advertising regulations, adapting them to the challenges posed by emerging AI technologies while maintaining the foundational principles of fair and transparent elections in California.
Definitions
Central to the application of AB 2355 are its precise definitions, which delineate the scope of content requiring disclosure. The Act defines 'artificial intelligence' as an engineered or machine-based system that varies in its level of autonomy and that can, for explicit or implicit objectives, infer from the input it receives how to generate outputs that can influence physical or virtual environments. This broad definition ensures that various forms of AI, from sophisticated generative models to more basic automated systems, are covered if they contribute to the creation or alteration of political advertisement content. Understanding this definition is crucial for committees and advertisers to determine whether their use of technology falls under the purview of the new disclosure requirements. The emphasis on influencing physical or virtual environments highlights the potential impact of AI on public perception and decision-making, particularly in the sensitive context of political campaigns.
The legislation further specifies what it means for media to be 'generated or substantially altered using artificial intelligence.' This critical definition encompasses two primary conditions. Firstly, it applies if the visual or audio media is entirely created using artificial intelligence and would falsely appear to a reasonable person to be authentic. This addresses deepfakes and other synthetic media designed to mimic reality convincingly. Secondly, it covers instances where the visual or audio media is materially altered by artificial intelligence such that the alteration would cause a reasonable person to have a fundamentally different understanding of the altered media when comparing it to an unaltered version. This condition targets more subtle but equally deceptive manipulations. Importantly, the law explicitly excludes immaterial alterations, such as cosmetic adjustments, color edits, cropped images, or resized images, from this definition, providing clarity on minor enhancements that do not fundamentally change the content's meaning or authenticity. A 'qualified political advertisement' is then defined as any advertisement that contains any image, audio, or video that meets these criteria for AI generation or substantial alteration.
Governance and Institutional Framework
The governance and institutional framework for AB 2355 are firmly rooted within California's existing regulatory structure for political campaigns, primarily overseen by the Fair Political Practices Commission (FPPC). The FPPC is an independent, non-partisan body established by the Political Reform Act of 1974, charged with administering and enforcing California's campaign finance, lobbying, and governmental ethics laws. With the enactment of AB 2355, the FPPC's mandate has expanded to include the oversight of AI disclosure requirements in political advertisements. This integration into an established agency ensures that there is a dedicated and experienced body responsible for interpreting the new law, developing necessary guidance, and ensuring compliance across the state. The FPPC's existing infrastructure for investigating complaints, issuing advisories, and pursuing enforcement actions provides a robust foundation for addressing violations related to AI-generated content.
Under AB 2355, the FPPC is vested with significant authority to enforce the disclosure requirements. The bill explicitly authorizes the commission to enforce violations by seeking injunctive relief to compel compliance or by pursuing any other administrative or civil remedies available to the commission under the Political Reform Act. This means that if a committee or entity fails to include the required AI disclosure in a qualified political advertisement, the FPPC can take legal action to stop the distribution of the non-compliant ad and impose appropriate sanctions. While the bill specifies that a violation of these disclosure requirements does not constitute a misdemeanor, the availability of civil and administrative remedies, including potential fines and cease-and-desist orders, provides a strong deterrent against non-compliance. This framework underscores California's commitment to maintaining transparency in its political processes, adapting its regulatory tools to address the evolving landscape of digital political communication and the challenges posed by advanced AI technologies.
Key Focus Areas
AB 2355's key focus areas are primarily centered on ensuring transparency and mitigating deception in political advertising through mandatory disclosure of AI-generated or substantially altered content. The legislation mandates that any 'qualified political advertisement'—defined as an ad containing AI-generated or substantially altered images, audio, or video—must include a clear and conspicuous disclosure. This requirement applies broadly across all forms of media, including print, television, radio, and online platforms, reflecting the pervasive nature of political communication in the modern era. The intent is to prevent situations where voters might unknowingly consume content that appears authentic but has been artificially created or manipulated, thereby influencing their perceptions and potentially undermining the democratic process.
A critical aspect of the bill's focus is the establishment of a 'reasonable person' standard for determining whether content is 'generated or substantially altered using artificial intelligence.' This standard is applied in two scenarios: first, if the AI-generated media would falsely appear to a reasonable person to be authentic; and second, if the AI-altered media would cause a reasonable person to have a fundamentally different understanding compared to the unaltered version. This objective standard helps to differentiate between minor edits and material alterations that could genuinely mislead the public. By focusing on the potential for deception, AB 2355 aims to capture the most impactful uses of AI in political advertising, ensuring that disclosures are triggered when they are most necessary to protect voter understanding. Furthermore, the law's application to advertisements related to federal, state, and local offices, as well as ballot measures, demonstrates a comprehensive approach to safeguarding the integrity of all levels of the electoral process in California.
Implementation Framework
The implementation framework for AB 2355 is designed to integrate the new AI disclosure requirements seamlessly into existing regulations governing political advertising in California. The Act specifies that if a committee creates, originally publishes, or originally distributes a qualified political advertisement, it must include a clear and conspicuous disclosure stating: “Ad generated or substantially altered using artificial intelligence.” The phrase
Penalties, Liability, and Appeals
Assembly Bill 2355 establishes enforcement mechanisms and legal liabilities for failure to comply with artificial intelligence disclosure requirements in political advertising. Enforcement authority is vested in the Fair Political Practices Commission. When a political committee fails to include the required clear and conspicuous disclosure stating that an advertisement was generated or substantially altered using artificial intelligence, the Commission may respond by taking specific enforcement actions authorized by law.
Under Section 84514(c), the Commission is empowered to seek injunctive relief in court pursuant to Section 90009 of the Government Code to compel immediate compliance. Alternatively or additionally, the Commission may pursue administrative or civil remedies available under Chapter 3 (commencing with Section 83100) or Chapter 11 (commencing with Section 91000) of the Political Reform Act of 1974. These administrative measures include issuing cease-and-desist orders, requiring the filing of corrected documents, or imposing monetary penalties of up to $5,000 per violation. Notably, the statute explicitly stipulates that non-compliance with the disclosure requirements does not constitute a criminal misdemeanor under Chapter 11.
Relationship to Other Instruments
Assembly Bill 2355 operates by directly amending and expanding the existing statutory framework of the Political Reform Act of 1974 in California. Specifically, the Act amends Sections 84504, 84504.1, 84504.2, 84504.3, 84504.4, and 84504.5 of the California Government Code, while adding Section 84514 to the same Code. Through these amendments, the measure integrates artificial intelligence disclosure requirements into the established disclosure rules governing political advertisements across radio, television, print, electronic media, and social media platforms paid for by political committees.
Furthermore, Assembly Bill 2355 explicitly addresses its relationship with federal law regarding digital platforms. Section 84514(b) provides that the state disclosure requirements do not alter or negate any rights, obligations, or immunities of interactive service providers under Section 230 of Title 47 of the United States Code. Additionally, the Act invokes subdivision (a) of Section 81012 of the Government Code, declaring that its provisions further the statutory purposes of the Political Reform Act of 1974, thereby satisfying the state constitutional requirement for legislative amendments to initiative measures.
Implementation Timeline
The legislative progression and operational schedule of California Assembly Bill 2355 unfolded across several key milestones during the 2023–2024 legislative session. The measure was formally introduced in the California State Assembly on February 12, 2024. Following committee reviews and floor debates, the bill passed the Assembly on May 24, 2024, and was subsequently transmitted to the California State Senate for consideration. The Senate approved the measure on August 30, 2024.
Upon passage by both houses of the Legislature, Assembly Bill 2355 was presented to the Governor. Governor Gavin Newsom approved the bill on September 17, 2024, and it was officially filed with the Secretary of State as a chaptered statute on the same day. Under California statutory rules, the provisions enacted by the bill became effective on January 1, 2025, establishing mandatory artificial intelligence disclosure requirements for all political advertisements created or distributed by committees starting on that date.
Sources and References
The primary official source for Assembly Bill 2355 is the California Legislative Information database, maintained by the California State Legislature. The complete statutory text, legislative counsel digest, and legislative history for the bill are formally recorded under measure identification 202320240AB2355. The measure officially amends California Government Code Sections 84504, 84504.1, 84504.2, 84504.3, 84504.4, and 84504.5, while adding Section 84514 to the Government Code in relation to the Political Reform Act of 1974.
Cross-references within the text establish connections to various other statutory provisions of the Political Reform Act of 1974, including Section 81012, Section 82013, Section 84223, Section 84501, Section 84502, Section 84503, Section 84506.5, Section 84504.8, Section 84513, Section 90009, and Section 91000 of the California Government Code. Furthermore, federal statutory background is referenced through Title 47, Section 230 of the United States Code regarding interactive service providers.
Requirements for a company
What an organisation has to do under United States - California - AI Disclosure in Political Ads (AB 2355), at a glance. Not legal advice — the table below gives the provision and deadline for each item.
Must do
3- Include the text 'Ad generated or substantially altered using artificial intelligence' on all qualified political advertisements.Political committees creating or publishing political advertisements in California
- Provide clear and conspicuous AI disclosures across print, television, radio, electronic media, and social media political ads.Political committees placing ads across media platforms
- Determine if AI media falsely appears authentic or fundamentally changes a reasonable person's understanding of the content.Political committees creating political advertisements
Must not do
1- Do not distribute political advertisements containing materially altered or synthetic AI media without the required AI disclosure.Political committees distributing political advertisements in California
Should do
0Nothing in this category.
Should not do
0Nothing in this category.
Who must do what
The obligations under United States - California - AI Disclosure in Political Ads (AB 2355), most serious first. Not legal advice — verify against the official text before relying on it.
| # | Who | Requirement | By when | Where | Severity |
|---|---|---|---|---|---|
| 1 | Political committees creating or publishing political advertisements in California | Include the text 'Ad generated or substantially altered using artificial intelligence' on all qualified political advertisements. “must include a clear and conspicuous disclosure stating: “Ad generated or substantially altered using artificial intelligence.”” | Jan 1, 2025 | Sec. 84514 | Critical |
| 2 | Political committees distributing political advertisements in California | Do not distribute political advertisements containing materially altered or synthetic AI media without the required AI disclosure. “When a political committee fails to include the required clear and conspicuous disclosure... the Commission may respond” | Jan 1, 2025 | Sec. 84514 | Critical |
| 3 | Political committees placing ads across media platforms | Provide clear and conspicuous AI disclosures across print, television, radio, electronic media, and social media political ads. “governing political advertisements across radio, television, print, electronic media, and social media platforms paid for by political committees.” | Jan 1, 2025 | Sec. 84504 | Critical |
| 4 | Political committees creating political advertisements | Determine if AI media falsely appears authentic or fundamentally changes a reasonable person's understanding of the content. “materially altered by artificial intelligence such that the alteration would cause a reasonable person to have a fundamentally different understanding” | Jan 1, 2025 | — | Important |
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© Regulations.AI using Gemini 2.5 Flash · reviewed against official sources on 7 Sep 2026 using Gemini 3.6 Flash