The big picture: California's new Senate Bill 951, effective January 1, 2027, will require employers to explicitly state in Cal-WARN notices when mass layoffs are substantially caused by artificial intelligence or other automated technology.

Why it matters: This legislation introduces a new layer of transparency for technology-driven job displacement, providing affected workers with more information and enabling public tracking of AI's impact on the labor market.

Between the lines:

• SB 951 amends California Labor Code Sections 1400.5 and 1401.
• Notices must detail the number, job types, locations affected, automated job functions, and the specific AI technology involved.
• The law does not change the existing 60-day notice period or the 50-employee trigger for Cal-WARN.

Staffing & HR impact: HR and legal teams must update Cal-WARN notice procedures to comply with the new AI disclosure requirements, potentially influencing severance negotiations and retraining programs. Staffing firms may see increased demand for reskilling services as displaced workers seek new opportunities.

The bottom line: California is pioneering transparency in AI-driven job displacement, setting a precedent that other states may follow.