SIMS Act
- Sponsor
- Sen. Cassidy, Bill [R-LA]
- Committees
- Judiciary Committee (primary)
- Last action
- Jun 3, 2026
Bottom line
The SIMS Act aims to criminalize and civilly penalize the creation and distribution of AI chatbots that simulate sexually explicit interactions with minors, while providing specific exemptions for law enforcement activities.
What it actually does
This bill prohibits covered entities from making available chatbots designed to simulate minors engaging in interactive sexually explicit conduct or conversation, when such content is obscene and violates criminal law. It defines key terms like "chatbot" and "sexually explicit conversation," provides an exemption for law enforcement investigations, and establishes both criminal and civil penalties for violations.
Proponents argue
Supporters argue this bill is crucial for protecting children from online sexual exploitation by addressing emerging threats posed by advanced AI. They contend that existing laws may not adequately cover AI-generated content and interactive simulations, making this legislation necessary to close potential loopholes and prevent the normalization of child sexual abuse material (CSAM) in virtual forms.
Opponents contend
Opponents might argue that the bill's definitions, particularly "sexually explicit conversation" and the criteria for "obscene" and "violates any criminal law," could be overly broad or vague, potentially leading to unintended restrictions on legitimate AI development or free speech. Concerns could also be raised about the practical enforceability against rapidly evolving AI technologies and the potential for chilling effects on innovation.
The bill is concise and its core provisions are understandable with a single reading, making it accessible for informed evaluation.
Section 1
Short Title
This section establishes the official short title of the Act as the "Stopping Illegal Minor Simulations Act" or "SIMS Act," providing a common name for referring to the legislation.
Supporters argue
Supporters argue that a clear and concise short title helps in public discourse and legislative tracking, immediately conveying the bill's purpose.
Critics contend
No specific opposition is typically raised against short titles, as they are administrative in nature.
Tradeoffs
None.
Section 2(b)(1)
Unlawful Provision of Minor-Simulating Chatbots
This core provision makes it illegal for any "covered entity" (owner/operator of a chatbot available in the U.S.) to provide a chatbot designed to simulate a minor engaged in interactive sexually explicit conduct or conversation with a human user. This prohibition applies only if the conduct or conversation is "obscene" and would violate an applicable criminal law.
Section 2(a)
Key Definitions
This section defines critical terms used throughout the Act. "Chatbot" is defined as an interactive computer service or software that simulates human-like conversation, produces new content, and accepts natural language input. "Covered entity" refers to any person owning or operating a chatbot available in the U.S. "Minor" is an individual under 18. "Sexually explicit conduct" adopts the meaning from 18 U.S.C. 2256, and "sexually explicit conversation" means interactive communication simulating such conduct.
Section 2(b)(2)
Exemption for Law Enforcement Investigations
This provision allows the Attorney General to grant exemptions from the chatbot prohibition for the limited purpose of law enforcement investigations into child sexual exploitation. This applies to Federal, State, local, and certain foreign law enforcement agencies.
Section 2(c) and 2(d)
Penalties and Civil Enforcement
This section establishes penalties for violating the prohibition. Willful violations carry a criminal fine of up to $100,000. Additionally, the Attorney General can bring civil actions to enjoin violations, enforce compliance, and obtain civil penalties up to $100,000 per violation, restitution, and other relief. The Attorney General is also granted investigatory powers (subpoenas, oaths, document production) and rulemaking authority.
This subsection clarifies that the prohibition does not: (A) prohibit internal/external research or red-teaming to assess chatbot compliance, (B) create liability for chatbot users who are not covered entities, or (C) depart from the constitutional standard for "obscene."
Section 2(b)(3)
Why it matters:Standard legislative practice to include clarifying rules of construction to address potential misinterpretations or unintended consequences.
Case for: Supporters argue these clarifications are essential to protect legitimate research, ensure that only the providers (covered entities) are liable, and anchor the definition of "obscene" to established constitutional precedent, thereby strengthening the bill's legal defensibility.
Case against: Critics might argue that while these clauses are intended to be protective, their placement could still lead to initial confusion or a chilling effect on research until legal interpretations are firmly established.
Estimated impact: Clarifies the scope of liability and protects legitimate activities, potentially reducing legal challenges and fostering responsible AI development.
States that it is not a required element of the offense that the minor simulated actually exist.
Section 2(b)(4)
Why it matters:Standard legislative practice to clarify intent regarding the nature of the simulated content, ensuring the law applies to AI-generated, non-existent minors.
Case for: Supporters argue this is crucial to ensure the law effectively targets AI simulations, as the harm stems from the creation and distribution of the content, regardless of whether a real child was involved in its generation. This prevents a loophole where AI-generated content could be argued as not involving a "real" victim.
Case against: No direct opposition, as this aligns with existing legal frameworks for child sexual abuse material (CSAM) where the existence of a real victim is not always required for prosecution of certain content.
Estimated impact: Significantly broadens the applicability of the prohibition to purely synthetic content, closing a potential major loophole for AI-generated material.
The amendments made by this section shall take effect 180 days after the date of enactment of this Act.
Section 2(c)
Why it matters:Standard legislative practice to specify an effective date, often to allow time for implementation and compliance.
Case for: Proponents argue that a 180-day delay provides covered entities with sufficient time to review their chatbot offerings, implement necessary safeguards, and ensure compliance with the new regulations, promoting a smoother transition.
Case against: Some advocates for immediate action might argue that a 180-day delay allows potentially harmful content to persist for too long, while some industry groups might argue it's still too short given the complexity of AI systems.
Estimated impact: Provides a grace period for industry adjustment, potentially mitigating immediate disruption but delaying the full protective effects of the law.