California Law — Enacted Jan 1, 2026

SB 942 Compliance Guide (2026)

SB 942, the AI Watermarking Act, requires AI-generated content to carry both visible (manifest) and embedded (latent) provenance markers. Large platforms with over 1 million monthly California users must also provide a free, publicly accessible AI content detection tool.

Effective
January 1, 2026
Large Platform Threshold
1M Monthly CA Users
Key Requirement
Manifest + Latent Watermarking

What SB 942 Requires

SB 942 applies to any platform that uses AI to generate content distributed to California users. The law requires two types of disclosure: manifest disclosures visible to users (labels, watermarks, or notices indicating content is AI-generated), and latent disclosures embedded in the content itself using technical standards like C2PA.

Platforms crossing the 1 million monthly California user threshold face the additional obligation of providing a free detection tool that allows any user to determine whether content was AI-generated.

All SB 942 Guides & Resources

14 resources
Jan 25, 2026

Watermarking Wellness: SB 942 & AI Medical Content

AI-generated health videos now need a digital fingerprint. Are you ready for SB 942?

Jan 25, 2026

Startup Guide to California's AI Transparency Act (SB 942)

Building a bot with 1M+ users? You owe the public a free detection tool.

Jan 25, 2026

Navigating SB 942: AI Watermarking for Healthcare

A practical implementation guide for SB 942 manifest and latent watermarking requirements.

Jan 25, 2026

SB 942: The 96-Hour Rule for Licensees

SB 942 has a 96-hour response window for watermarking complaints. Here is what that means.

Jan 25, 2026

SB 942 Audit: The 2026 Deadline Checklist

Are you ready for the SB 942 enforcement deadline? This audit checklist covers every requirement.

Jan 25, 2026

SB 942 Latent Watermarking: UX Implementation Guide

Invisible watermarks are a technical challenge. Here is how to implement them without harming UX.

Jan 25, 2026

SB 942 Manifest vs Latent Disclosures: A Developer Implementation Guide

California SB 942's manifest vs latent disclosure rules, the C2PA implementation pattern, and a working compliance checklist.

Jan 25, 2026

AB 3030 vs. SB 942: Which AI Disclosure Law Applies?

Confused by the new alphabet soup of CA laws? We break down the big two.

Jan 25, 2026

AB 3211: Watermarking Medical Images in CA

Is that X-ray AI-enhanced? California's new provenance laws are changing medical imaging.

Jan 25, 2026

Manifest vs. Latent AI Disclosures: The Technical Breakdown

What is the difference between manifest and latent watermarking, and when does each apply?

Jan 25, 2026

California's AI Provenance Rules: A 2026 Overview

Beyond watermarking: how California is building an end-to-end AI provenance framework.

Jan 25, 2026

Build a Compliant AI Detection Tool: SB 942 Requirements

Large platforms must offer a free AI detection tool to users. Here is the technical specification.

Jan 25, 2026

SB 942 vs AB 853: Understanding the Extended Deadline

AB 853 extended the SB 942 watermarking deadline. Here is what changed and when it matters.

Jan 25, 2026

Are You a Covered Provider? The 1 Million User Threshold

SB 942's strictest requirements only apply above 1M monthly California users. Here is how to calculate your exposure.

Audit Your SB 942 Compliance

Use our free compliance checker to assess your platform's SB 942 watermarking obligations.

Start Free Audit →