SB 951: What AI Layoff Notices Mean for Workforce Boards
Picture a notice reaching a workforce board office. A regional employer plans to cut several dozen positions. This time the notice says which job functions the company is automating and what kind of technology is doing the work. Starting January 1, 2027, that level of detail is what California’s amended Cal-WARN notice is designed to produce.
Governor Newsom signed Senate Bill 951 on September 30, 2026. As of publication, the bill leaves intact the parts of Cal-WARN that set the timeline and the scope of coverage. What it changes is what a notice must contain when a layoff is caused in whole or in substantial part by artificial intelligence or other automated technology which you can read more about in California’s Unemployment Tracker Is Live for WDBs.
For workforce boards, that change is a gift. Notices are often the earliest signal a regional system receives about a layoff. They also arrive with a clock attached. The question for boards is less about whether the law applies to their region and more about what they will do with the information once it arrives.
What the law changed
SB 951 amends the California Worker Adjustment and Retraining Notification Act, known as Cal-WARN.The core framework stays in place and the new requirements sit on top of it. The table below separates what the statute requires from what each change means for a board.
Provision | What the statute requires | What it means for a board | Basis |
Scope | A covered establishment employs 75 or more persons. A mass layoff is 50 or more employees within a 30-day period. | Determines which regional employers generate these notices. | Labor Code §1400.5 |
Trigger | The layoff is caused “in whole or in substantial part” by AI or other automated technology. | Defines when the added detail applies. This is a causation test, not a simple checkbox. | Labor Code §1401(d)(1) |
Added content | The number and occupations of affected workers, the job functions being automated, the type of AI or automating technology, and the header “This notice is for a technology displacement.” | Gives rapid response teams and case managers specific job functions around which to plan training and placement. | Labor Code §1401(d)(1)(A) to (D) |
Public summaries | The Employment Development Department (EDD) publishes summaries of these notices and a quarterly statewide summary. | Gives boards regional visibility that a single notice does not provide. | Labor Code §1401(d)(2) |
Notice timing | Sixty days’ notice, unchanged from Cal-WARN. | Sets the window in which the board can plan. | Labor Code §1401(a) |
Effective date | January 1, 2027. | Employers must include the new content from that date forward. | Littler analysis, October 2, 2026. The chaptered text has no operative date. |
The trigger deserves attention. The phrase “in whole or in substantial part” is broader than “solely because of.” A layoff does not need to be entirely caused by AI to fall within the new requirements. That breadth is useful for transparency, and it also explains why the statute leaves so much to interpretation, as discussed below.
Where the board sits in the notice
The local workforce development board receives the notice directly, along with the EDD, affected employees, and the chief elected official of each affected city and county (§1401(a)). For a layoff caused in whole or in substantial part by AI or automated technology, the notice must also name the job functions being automated and the type of technology involved (§1401(d)(1)). The employer also states whether it will coordinate rapid response services through the board (§1401(c)). That choice is the employer’s, so the notice is how the board learns its role. A board that has not decided in advance how its staff will respond will be making those decisions under the clock.
What this means for workforce planning
The new input is specificity. A notice that names the occupations and job functions affected tells a board which roles and skills are under pressure, and in which locations. A program manager can use that to decide which training pathways to open or expand. A case manager can use it to focus on the skills displaced workers are most likely to transfer. A regional planner can see whether affected roles cluster in one industry or part of the region.
The statute does not give boards new planning duties. As written, the planning consequence is a decision the board makes, not an obligation the law imposes. The boards that benefit most will be the ones that settle in advance how notice information moves from the front desk into planning conversations, training decisions, and partner discussions. Waiting for the first notice to arrive means making those decisions in the middle of the 60-day window.
Boards already run regional planning cycles, and the new disclosures give those cycles a more specific input. They do not replace the judgment planning requires. A single notice shows one data point: an employer’s reduction, not the full picture across a region. Its value depends on what the board does with it alongside other signals.
The question the statute leaves open
“Substantial part” is not defined. The statute also does not say who determines whether AI or automation caused a particular layoff. It does not offer a test for situations where AI affects some of the positions being cut but not others.
Those gaps matter because boards will read these notices without a settled standard. The practical response is an internal method for reading them: consistent criteria for what a notice shows, a written record of what staff cannot tell from it, and shared language across the staff who handle notices. That is strategic work, and it is where a board’s own leadership and advisors add the most value.
What boards can do now
These actions set up a system that can grow into specific tactics as information arrives. Some of that information arrives beginning in January.
Action | What it addresses | Anchor in the statute |
Decide who reads Cal-WARN notices and what each notice triggers | Routing and time to first action | Board is a named recipient (§1401(a)) |
Map notice content to training, placement, and partner planning | Turning disclosures into planning inputs | Added content (§1401(d)(1)) |
Decide in advance how the board will coordinate with an employer | The coordination choice and the 30-day service window | §1401(c) |
Build an internal method for reading “substantial part” | The undefined causation standard | Statute does not define the term |
Track EDD summaries for regional patterns | Visibility across notices and across the state | §1401(d)(2) |
Engage large regional employers early | Coordination happens only if the employer chooses it | §1401(c) |
Each row is a decision a board can make this quarter. None requires new funding or a new program. Boards need to decide how they will read and use information they are already going to receive.
If your board is working out how to read these notices and turn them into decisions, schedule a conversation. We can talk through the analysis and the tactics: the board preparing staff and using existing resources, training, and funding sources.
Frequently asked questions
Does SB 951 change the 60-day notice period?
No. The 60-day notice period under Cal-WARN is unchanged. SB 951 adds content to the notice rather than changing when it must be sent. Employers still have to give notice 60 days before a covered layoff takes effect.
Who receives the notice?
The statute names affected employees, the Employment Development Department, the local workforce development board, and the chief elected official of each city and county where the action occurs. The board receives the notice directly, along with the other recipients.
What does a board learn from the new disclosures?
A board learns which occupations, work locations, and job functions an AI-related layoff affects, plus the type of technology involved. That tells program and case management staff which skills and training pathways the affected workers are most likely to need. A single notice shows one employer’s reduction, not the full regional picture.
What does this mean for workforce planning?
The disclosures give workforce staff specific inputs they did not have before: the job functions being automated, not only the headcount. The statute does not require boards to change their plans. Boards that set a method for using notice information in advance can act sooner and serve affected workers and employers more effectively within the 60-day window.
Does the statute define “substantial part”?
No. The statute uses “in whole or in substantial part” as its causation trigger but does not define the phrase. It also does not say who determines whether AI or automation caused a layoff, so boards will need an internal method for interpreting notices.
When does the law take effect?
The chaptered text does not state an operative date. Littler’s analysis of the signed bill, published October 2, 2026, gives January 1, 2027 for the new notice content.
