# Large frontier developers must publish a frontier AI framework

- **Record type**: Obligation
- **Instrument**: California SB 53: Transparency in Frontier Artificial Intelligence Act
- **Jurisdiction**: California (United States)
- **Category**: safety_testing
- **Binding**: Yes
- **Applies from**: 2026-01-01
- **Provision**: Business and Professions Code, Chapter 25.1 (as added by SB 53)

## In brief

Large frontier developers must publish a frontier AI framework is a legal requirement under the California SB 53 in California (United States) (Business and Professions Code, Chapter 25.1 (as added by SB 53)). It applies from 1 January 2026. The record carries 1 evidence example and mappings to 1 framework.

## What the duty requires

Large frontier developers must publish and maintain a framework describing how they incorporate national and international standards, assess catastrophic risk, apply mitigations, secure model weights, and govern internal processes, and must review it at least annually.

## What an organisation does about it

Publish a safety framework and keep a change log of revisions.

## Controls that meet this duty

- Frontier model safety and security framework (satisfies): https://aipolicytracker.org/controls/frontier-model-safety-framework
- Adversarial and red-team testing for generative AI (supports): https://aipolicytracker.org/controls/genai-red-team-testing

## Parent instrument

- California SB 53: Transparency in Frontier Artificial Intelligence Act
  - Record: https://aipolicytracker.org/policies/us-california-sb-53
  - Context file: https://aipolicytracker.org/policies/us-california-sb-53.md

## Provenance

- **Permanent id**: AIPT-OBL-0079 (https://aipolicytracker.org/id/AIPT-OBL-0079; never changes or gets reused)
- **Record page**: https://aipolicytracker.org/obligations/us-california-sb-53-frontier-ai-framework
- **Official source**: https://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202520260SB53
- **Provision**: Business and Professions Code, Chapter 25.1 (as added by SB 53)
- **Review status**: verified
- **Confidence**: medium
- **Facts last confirmed**: 2026-09-26
- **Confirmed by**: Bhaskar Bhatt (see https://aipolicytracker.org/reviewers)
- **Retrieved**: 2026-10-27
- **Licence**: https://creativecommons.org/licenses/by/4.0/
- **Cite as**: AIPolicyTracker (2026). "Large frontier developers must publish a frontier AI framework (California SB 53)" [AIPT-OBL-0079, verified 26 September 2026 by Bhaskar Bhatt]. https://aipolicytracker.org/id/AIPT-OBL-0079 (accessed 27 October 2026).

> This record is a structured summary with a link to the official text. It is not legal advice. Open the official source before relying on any date or duty. How current each record type must be is published at https://aipolicytracker.org/verification; what a record must carry at all is published at https://aipolicytracker.org/coverage.