California WARN Act: Coverage, Notice, and Penalties
Who Cal-WARN covers at 75 employees, what triggers 60-day notice, the four required recipients, the new notice content rules, and the penalties.
California WARN Act
Who is covered at 75 employees, what triggers a 60-day notice, who has to receive it, what the notice must now contain, and what getting it wrong costs
Most of what is written about this law is aimed at the person who was laid off, not at the employer. If you run a California business and a reduction is on the table, you need three answers fast: whether the law applies, exactly what you have to send and to whom, and what a mistake costs.
The answer to the first one trips up a lot of people. California's threshold is 75 employees, not the federal 100, and it counts part-time staff. That puts a band of mid-sized California employers under state law while they sit comfortably below the federal line, and they generally find this out at the worst possible moment.
This guide walks through who is covered, what triggers notice, the four notice recipients, and what the notice must contain, including the requirements added for notices issued from the start of 2026, before turning to the exceptions that are narrower than most people assume and the penalty arithmetic.
I build the employee records and task workflows this process runs on at FirstHR. This is general information rather than legal advice, and a layoff is one of the clearest cases for having an employment attorney review the plan before you act.
What Cal-WARN Is
The California WARN Act is a state notice law requiring covered employers to warn employees and government before a large workforce reduction. It does not prohibit the reduction. It requires you to give people time.
The purpose of the law is to give displaced workers and the local workforce system a runway. That framing is worth holding onto, because it explains most of the design: why four recipients rather than one, why the notice must describe the services available, and why the penalty is measured in days of pay rather than as a flat fine.
One clarification that resolves a common confusion: Cal-WARN does not limit your right to conduct a reduction. California is an at-will employment state and the law here is procedural, not substantive. You can lay people off for business reasons.
The statute controls only how much warning you give and who you give it to. The penalty for skipping that step is measured in the pay you would have owed during the notice period, not in a reversal of the decision.
The same purpose explains something practical: the state is not trying to trip employers up. The EDD publishes a step-by-step filing process and rapid response teams exist to help. The failures that end in litigation are almost always failures to notice the obligation existed, not failures to comply once it was understood.
Who Is Covered
Coverage turns on two numbers, one for the size of the establishment and one for the size of the layoff, and confusing them is the most common analytical error on this topic.
The employer threshold is 75. Under Labor Code section 1400.5, Cal-WARN applies to a covered establishment, meaning any industrial or commercial facility that employs, or has employed within the preceding 12 months, 75 or more people. Both full-time and part-time employees count toward that number.
The event threshold is 50. The same section defines a mass layoff as 50 or more employees losing their positions at that establishment within any 30-day period.
Coverage also attaches to the establishment rather than to the company as a whole. A company with several California sites analyzes each one, and the analysis of one location does not settle the answer for another.
Run the count on paper rather than in your head, one sheet per site, and keep it. The worksheet below walks the count, the trigger, the 30-day window and the 60-day backward calculation in the order the analysis actually happens, and finishes with a recorded conclusion.
What Triggers the Notice Requirement
Three distinct events trigger Cal-WARN, and only one of them is what most people picture when they think of the law.
The relocation trigger deserves particular attention because it has no federal counterpart and because it does not feel like a layoff to the employer doing it. A California company consolidating operations to a facility 120 miles away is moving, not cutting, and may still owe notice.
Temporary actions are the other blind spot. In International Brotherhood of Boilermakers v. NASSCO Holdings (2017) 17 Cal.App.5th 1105, the California Court of Appeal held that Cal-WARN reaches a temporary layoff, affirming an award to roughly 90 workers who were told not to return for four to five weeks.
Federal WARN is the contrast. It counts a temporary layoff as an employment loss only once the layoff runs past six months. California drew no equivalent line, so do not assume a covered establishment can furlough 50 or more people without giving notice.
Cal-WARN vs the Federal WARN Act
Both laws can apply to the same event, and they operate independently. Satisfying one does not satisfy the other, and liability under each is calculated separately.
The federal figures below are the definitions at 29 U.S.C. 2101. In that statute, an employer means one with 100 or more employees, part-timers excluded. A plant closing is a shutdown causing employment loss for 50 or more people at a single site, and a mass layoff is 50 to 499 employees who make up at least 33 percent of the active workforce, or 500 regardless.
| Federal WARN | Cal-WARN | |
|---|---|---|
| Employer threshold | 100 employees | 75 at a covered establishment |
| Part-time employees counted | Generally excluded | Counted |
| Mass layoff trigger | 50 plus a 33 percent workforce test, or 500 regardless | 50, with no percentage test |
| Closure threshold | 50 or more affected | Essentially any number |
| Relocation trigger | None | 100 miles or more |
| Unforeseeable business circumstances | Available | Not adopted |
| Faltering company exception | Closures only | Termination or relocation, not mass layoffs |
| Notice period | 60 days | 60 days |
The pattern holds on most rows: California is broader on coverage and narrower on excuses. In practice this means that for a California establishment, the analysis that matters is the state one. If you clear Cal-WARN you have usually cleared federal WARN as well, apart from the few gaps described next, and the reverse is not true.
A few federal rules have no California counterpart. Under the same federal definitions, cutting an employee's hours by more than half in each month of a six-month period is an employment loss. The 100-employee count runs company-wide, so closing a site with 50 to 74 full-time employees can still be a federal plant closing.
Union representation is the third difference. Where employees have a union, federal notice goes to their representative, a step Cal-WARN does not require.
The 75 to 99 Employee Band
Employers in this band sit in a specific and awkward position. If your California establishment has between 75 and 99 employees, and your company as a whole sits below the federal threshold, you are covered by Cal-WARN and not by federal WARN.
Every generic article about the WARN Act, every summary that starts at 100 employees, and quite possibly your own recollection of the law all point the wrong way for you.
Concretely: a 90-person California business laying off 50 people owes a full Cal-WARN notice to four recipients, 60 days in advance, with all the required content, and faces the full penalty structure if it does not. The federal law is silent on that event entirely.
The exposure is not proportionally smaller either. The penalty is calculated per affected employee, and the mass layoff definition guarantees at least 50 of them. A 90-person business faces essentially the same arithmetic as a 900-person business running the same 50-person layoff, against a much smaller balance sheet.
For a mid-sized California employer, this is the one compliance obligation where the downside is close to an existential number rather than a line item.
Two things follow for a business in this band. The first is that headcount monitoring is a compliance function, not just a planning one. Crossing 75, including with part-time hires, changes your legal obligations in a way that nothing will announce to you.
The second is timing. The analysis has to happen at the point a reduction is first discussed, not when it is scheduled, because 60 days is a long time when the reason for the reduction is that money is running out.
Who Has to Receive the Notice
Four recipients. This is the most mechanical part of Cal-WARN compliance and one of the most commonly botched.
That list comes from Labor Code section 1401, the same section that carries the notice content rules. Each recipient is a separate service obligation, so each one needs its own dated proof of delivery sitting in the file when someone asks for it a year later.
The chief elected official is the recipient that gets missed. It is not intuitive that a city mayor needs a copy of your layoff notice, and there is no single directory of who to send it to. The EDD FAQ tells employers to contact their Local Area for the contact information of the chief elected officials they need to notify, which is worth doing early rather than on day 58.
Service is the part that has to be provable months later, so log it as you go. The log below records the method and date for each of the four recipients, holds the content check you run before anything is sent, and carries the 30-day service coordination deadline that the disclosure creates.
What the Notice Has to Say
Cal-WARN incorporates the content elements required under the federal WARN regulations and then adds California-specific requirements on top.
The federal baseline is set out at 20 CFR 639.7. It includes the name and address of the employment site; whether the action is expected to be permanent or temporary, and whether the entire site is closing; the expected date of the first separation and the anticipated schedule; and the job titles of affected positions and the number of employees in each.
The federal baseline also covers whether bumping rights exist, meaning a more senior employee can displace a less senior one instead of being laid off, and the name and contact details of a company official who can provide further information.
Just as useful is knowing what the notice does not have to contain. There is no requirement to explain the business reasons for the reduction, and no requirement to offer severance. Cal-WARN is a notice statute, not a severance statute, and California has no general law requiring severance pay. If you do offer it, that is a separate document with its own considerations, and pay in lieu of notice does not substitute for the notice itself.
Beyond content, one practical point about tone. The notice is a legal document and it is also the thing a person reads when they learn they are losing their job. Those two purposes are not in conflict, but a notice drafted purely as the former reads badly. Sending it alongside a clear explanation of continuation coverage and final pay timing is kinder, and it means fewer questions for you.
California has its own strict rules on that final payment, and they run on a separate clock from the WARN notice. Accrued vacation is treated as earned wages in California and must be paid out at separation, and final wages are generally due on the last day of employment for a layoff (Labor Code sections 201 and 227.3).
An employer that gets the 60-day notice right and the final paycheck wrong has traded one wage claim for another, so plan both together rather than sequentially.
What the Recent Amendment Added
Senate Bill 617 amended Labor Code section 1401 and applies to notices issued on or after January 1, 2026. It changed nothing about who is covered or what triggers notice. It expanded what the notice must contain.
The EDD summarized the change in a workforce services information notice, which is the shortest authoritative statement of the new requirements and is worth reading directly before you finalize a template.
One further signal is worth tracking rather than acting on. The governor's executive order signed on May 21, 2026 directs state agencies to produce recommendations within 180 days on revisions and updates to Cal-WARN, so that the statute can provide early warning data and stay responsive to emerging industry trends.
That is a recommendation process rather than a change in law. It does mean this is an area to recheck before you build a notice, rather than one to treat as settled.
Timing and Delivery
Sixty days means 60 calendar days before the action takes effect, and the notice must be received by that point rather than merely sent.
Acceptable delivery to employees is a method that ensures receipt: first-class mail, personal delivery, or inclusion in the pay envelope. Those methods come from the federal WARN regulation at 20 CFR 639.8, which accepts any reasonable method designed to ensure receipt at least 60 days before separation.
That same regulation rules out one thing employers reach for. A ticketed notice, meaning a preprinted notice regularly included in every paycheck or pay envelope, does not meet WARN, so the pay envelope works only for a genuine one-off insertion.
The EDD filing is separate and mechanical. It goes by email to the address the EDD publishes, with the employer name in the subject line and the written notice attached as a document.
Sixty days is the minimum, and nothing stops you from giving notice earlier. Whether you should is a genuine trade-off.
If you genuinely cannot give the full 60 days, the EDD layoff services guidance is still to file the WARN notice and include an explanation. A late notice with a reason is a better position than no notice, both practically and legally.
The Exceptions Are Narrower Than You Think
This is where employers relying on general WARN knowledge get into trouble, because the federal exceptions are broader and better known.
Labor Code section 1401 excuses notice where the mass layoff, relocation, or termination is necessitated by a physical calamity or an act of war. The faltering company relief exists but applies only to a termination or a relocation. And California has not adopted the federal unforeseeable business circumstances exception at all.
That last point is the important one. A sudden and unexpected business reversal, the classic scenario that shortens notice under federal WARN, does not have a corresponding California exception. An employer whose funding falls through in a week is in a genuinely difficult position under Cal-WARN, and it is the position most likely to produce a claim.
For an employer whose funding is in doubt, the relief that matters is the faltering company provision in Labor Code section 1402.5. An employer actively seeking capital or business that would allow it to avoid or postpone the action can request a determination under it, but the section says expressly that it does not apply to a mass layoff.
That request does not go to the EDD, which receives the notice itself. Section 1402.5 leaves the determination to the department, and section 19 of the Labor Code defines the department as the Department of Industrial Relations. Treat the request as a process to start early, not a defense to assert afterward.
Cal-WARN also does not reach work that everyone understood to be of limited duration. That covers seasonal work where employees were hired on that basis, and project work in broadcasting, motion pictures, construction, drilling, logging, or mining. If you rely on this, the understanding needs to have been documented at hire rather than characterized that way later.
What Non-Compliance Costs
The penalty structure is designed so that the cost scales with the number of people affected, which for a mass layoff is at least 50.
The back pay calculation is set out at Labor Code section 1402: the higher of the employee's average regular rate over the last three years of employment or their final rate, for up to a maximum of 60 days or one-half the number of days they were employed, whichever period is smaller. Lost benefits, including medical expenses that would have been covered, are added on top.
Two features make this worse than the headline number suggests. The first is attorney fees. Prevailing employees can recover them under Labor Code section 1404, and that is what makes these cases economically attractive to bring.
The second is the filing window. Cal-WARN sets no limitations period of its own, so back pay and benefit claims run on the three years that Code of Civil Procedure section 338 allows for a liability created by statute. Section 1404 also lets one plaintiff sue on behalf of everyone similarly situated, so three years of per-employee exposure tends to arrive as a single class claim.
Labor Code section 1403 adds a civil penalty for failing to notify the EDD, the local workforce board, and the chief elected officials: not more than $500 for each day of violation.
The same section carries the one piece of relief in the structure. The penalty falls away if the employer pays every affected employee what it owes under section 1402 within three weeks of the date it orders the layoff, relocation, or termination.
That is a narrow window. It is also the reason to get advice immediately on discovering a notice failure, rather than waiting to see whether anyone notices.
If You Employ People in Other States Too
Multi-state employers face two problems at once: satisfying both federal and California law for the California site, and dealing with whatever other states require.
For the California site, run the Cal-WARN analysis and treat federal WARN as a floor you will usually clear along the way. The state thresholds are lower and the exceptions narrower, so a plan built to satisfy California will generally satisfy the federal law for the same event, while the reverse fails.
The federal-only rules still need their own check: the hours-reduction test, the company-wide headcount, and notice to a union representative where employees have one.
The planning side matters as much as the filing side. A reduction in force that is scoped before the notice analysis frequently has to be rescoped after it, because the 50-person threshold and the 30-day window turn out to sit awkwardly against the plan. Running the Cal-WARN analysis while the reduction is still being designed, rather than after it is decided, is the difference between shaping the plan and discovering a constraint.
For other states, check individually. Several states have their own mini-WARN statutes with their own thresholds, notice periods, and recipient lists, and a few require longer than 60 days. There is no shortcut here: the obligation follows the establishment, so each site gets its own analysis.
One coordination point matters in practice: aggregation, meaning separate cuts added together and treated as one event. Federal WARN aggregates employment losses at a single site over a 90-day period unless the employer shows separate and distinct causes, and California counts staggered reductions inside a 30-day window as one event.
Phasing is the thing a plaintiff will examine. If you are planning reductions across a year, document the independent business reason for each phase at the time you decide it rather than reconstructing it later, and keep that documentation alongside your payroll records for at least the three-year limitations period on back pay claims.
The Compliance Workflow
Here is what to actually do, in eight steps and in order, from the moment a reduction becomes a real possibility.
Mistakes That Create Liability
Almost every Cal-WARN failure is one of a small number of predictable errors, and none of them is expensive to avoid.
Everything after the notice is standard offboarding, but the volume changes the nature of it. Fifty simultaneous separations means fifty final paychecks calculated correctly on the same day, fifty sets of access to revoke, fifty benefits terminations, and fifty continuation coverage notices.
Process is what breaks at that volume. Whatever works for one departure at a time tends to fail across fifty, and the failures are the kind that generate individual claims on top of the WARN exposure. Employee record retention obligations also continue after separation and are not suspended because the person no longer works there.
The through-line is that this is a knowledge failure rather than an effort failure. The compliance act itself is a letter, correctly drafted, sent to four recipients, 60 days early.
Litigation rarely comes from employers who refuse to send that letter. It comes from employers who did not know the letter was required until an attorney told them, which is why the headcount check belongs in your compliance routine rather than in your layoff planning.
Frequently Asked Questions
What is the California WARN Act?
The California WARN Act, known as Cal-WARN, is the state law in Labor Code sections 1400 through 1408, and it makes a covered employer warn people in writing at least 60 calendar days before three kinds of workforce action: a mass layoff, a shutdown of operations at a site, or a move of operations 100 miles or more away. That warning has four required recipients: the affected employees themselves, the state Employment Development Department, the regional Local Workforce Development Area, and the chief elected official for every city and county involved. The law sits on top of the federal WARN Act instead of replacing it. On most points it reaches further than the federal rules, though federal WARN still covers a couple of situations Cal-WARN leaves out, and where both laws apply an employer has to satisfy each of them.
How many employees triggers the California WARN Act?
Two different numbers apply, and mixing them up is a common mistake. The first is the 75-person threshold, which decides whether an establishment is covered at all: it is covered if it employs 75 or more people now, or did at any point in the preceding 12 months, with part-time staff included. Federal WARN, by contrast, begins at 100 employees and generally leaves part-timers out. The statute states the 75 test in terms of persons, while its tenure rule (at least 6 of the 12 months before notice was required) defines who is an employee for the layoff count, so the careful approach includes short-tenure staff when testing against the 75. The second number is 50: a mass layoff means 50 or more employees losing their jobs at that establishment within any 30-day period. A California business of 90 people that lays off 50 of them is therefore covered, even though it sits under the federal threshold.
What is the difference between Cal-WARN and the federal WARN Act?
Cal-WARN is broader on most dimensions, though not all. The employer threshold is 75 rather than 100, and part-time employees count toward it. The mass layoff trigger is 50 employees with no percentage-of-workforce test, whereas federal WARN includes a 33 percent test. In California, shutting down operations at a site can trigger notice no matter how few people it affects. California uniquely covers relocations of 100 miles or more. And California has not adopted the federal unforeseeable business circumstances exception. The federal law still reaches two situations the state law misses: a cut of more than half in an employee's hours in each month of a six-month period, and the closing of a site too small for Cal-WARN when the company as a whole has 100 or more employees. Both laws can apply at once, producing parallel and independent liability.
Who must receive a Cal-WARN notice?
Four recipients must get it, and every one of them is required. The first is each affected employee personally: unlike the federal law, the California statute makes no provision for serving a union representative in the employee's place. The second is the state Employment Development Department, which takes the notice by email with your company name in the subject line. The third is the Local Workforce Development Area covering the site, the regional body that organizes rapid response services for displaced workers. The fourth is the chief elected official of every affected city and county, usually the mayor or the chair of the county board. Leaving out that fourth recipient is the most common service failure, and if you are unsure who the official is, your Local Area can tell you.
What must a California WARN notice contain?
It has to include everything the federal WARN regulations require, plus several California-specific items. The federal elements cover the site's name and address, whether the action is expected to be permanent or temporary, when the first separation is expected, which job titles are affected, and who at the company can answer questions. On top of that, any notice issued in 2026 or later must say whether the employer will coordinate services through the Local Workforce Development Board, through some other entity, or not at all. It must also give the board's contact details with the prescribed description of its services, describe CalFresh along with its helpline and website, and list a working email address and phone number for the employer.
What are the penalties for violating Cal-WARN?
An employer that fails to give proper notice faces three costs: back pay and lost benefits for every affected employee, a civil penalty, and the attorney fees of employees who prevail. Lost benefits include medical expenses the employer's plan would have covered. Labor Code section 1402 sets back pay at whichever is higher, the employee's final rate or their average regular rate over their last three years of employment, for up to 60 days or half the days they were employed, whichever is shorter. Section 1403 adds a civil penalty of up to $500 per day of violation when the employer fails to notify the state and local recipients. That penalty disappears if, within three weeks of ordering the layoff, relocation, or termination, the employer pays every affected employee the full amount section 1402 requires. Cal-WARN itself contains no filing deadline. Back pay and benefit claims therefore fall under the three-year period that Code of Civil Procedure section 338 gives a liability created by statute. That period expressly excludes penalties, and section 340 gives penalty claims one year.
Does Cal-WARN apply to temporary layoffs and furloughs?
It can. In the 2017 case International Brotherhood of Boilermakers v. NASSCO Holdings, the California Court of Appeal found that a shipyard owed Cal-WARN notice for sending about 90 employees home unpaid for a few weeks, even though the employer called it a furlough. That is a meaningful departure from how many employers instinctively read the law. The practical implication is that an employer planning a furlough of 50 or more people at a covered establishment cannot assume the temporary nature of the action removes the obligation. This is an area where the answer depends heavily on specific facts, so it is worth confirming with employment counsel before proceeding rather than after.
Are there exceptions to the 60-day notice requirement?
Fewer than under federal law. Notice is excused under Labor Code section 1401 when a physical calamity or an act of war makes the action necessary. Relief for a faltering company exists under section 1402.5, but it covers only a termination or a relocation and, by its own terms, never a mass layoff. California has not adopted the federal unforeseeable business circumstances exception either, so a sudden downturn that might justify short notice under federal law may not justify it in California. Seasonal employees hired with that understanding fall outside Cal-WARN, as do project hires in broadcasting, motion pictures, construction, drilling, logging, and mining who knew the job would end with the project. An employer actively seeking capital or business can apply to the Department of Industrial Relations for a section 1402.5 determination, which is something to start early, not an argument to make after the fact.