The WARN Act in California: What Employers Owe Workers Before a Layoff
When a large employer lays off a significant number of workers, federal and California law require advance notice. Both statutes have teeth. And both are violated more often than employers seem to expect.
A layoff feels sudden to the people it affects. The meeting is scheduled with little warning. The decision has already been made. The employee learns, in the course of a brief conversation, that the job is gone.
For individual terminations, that abruptness is generally lawful. But when the layoff involves a large number of employees — a plant closure, a mass reduction in force, a facility relocation — both federal and California law require something before the meeting happens: advance written notice. The federal Worker Adjustment and Retraining Notification Act, and its California counterpart, exist to give workers and their communities time to prepare for the economic disruption a mass layoff creates.
These statutes do not prevent the layoff. They require the employer to plan for it, to disclose it, and to give the people who will lose their jobs enough warning to begin looking for new ones. When employers skip that step — or structure the layoff to avoid triggering the requirements — the statutes provide concrete remedies.
The federal WARN Act
The federal WARN Act, codified at 29 U.S.C. sections 2101 through 2109, applies to employers with one hundred or more full-time employees. It requires sixty calendar days’ advance written notice before a plant closing or mass layoff.
A “plant closing” is the permanent or temporary shutdown of a single site of employment, or one or more facilities or operating units within a site, resulting in the loss of fifty or more full-time employees during any thirty-day period. A “mass layoff” is a reduction in force that does not result from a plant closing but affects either five hundred or more employees, or at least fifty employees where they constitute at least one-third of the workforce at the site.
The notice must be provided to the affected employees individually, as well as to the state dislocated-worker unit and the chief elected official of the local government where the employment site is located.
When the notice is not provided — when workers are laid off without the required sixty-day warning — the remedy is back pay and benefits for each day of the violation, up to sixty days. The employer owes each affected employee the wages and value of benefits they would have received during the notice period they should have been given.
California’s WARN Act is more protective
California enacted its own WARN Act, codified at Labor Code sections 1400 through 1408, and its provisions are materially broader than the federal statute in several respects.
The California statute applies to employers with seventy-five or more employees — not one hundred, as under federal law. It defines a “mass layoff” as a layoff of fifty or more employees during any thirty-day period, without the one-third-of-workforce requirement that limits the federal definition. And it applies to relocations — the removal of all or substantially all of the industrial or commercial operations to a location at least one hundred miles away — as a separate triggering event.
Like the federal statute, California’s WARN Act requires sixty days’ advance written notice. Like the federal statute, the remedy for noncompliance is back pay and benefits for up to sixty days. But because California’s thresholds are lower and its triggering events are broader, it reaches layoffs that the federal statute does not.
Both statutes can apply simultaneously. A layoff that triggers California WARN does not become exempt from federal WARN, or vice versa. The employer must comply with both, and the more protective provision governs where the two overlap.
How employers get it wrong
WARN Act violations are rarely accidental in the way a payroll error might be. They tend to arise from one of several recurring patterns.
Staggered layoffs. An employer lays off forty employees in one week and another forty three weeks later, hoping that neither round independently triggers the statute. Both WARN Acts anticipate this. They aggregate layoffs that occur within a thirty-day period (or, under certain circumstances, a ninety-day period) to determine whether the threshold has been met. If the aggregated losses meet the threshold, the notice obligation applies to all of them. An employer cannot avoid the statute by splitting a single reduction into installments.
Misclassification of the event. An employer characterizes a mass layoff as a series of individual terminations, each for ostensibly distinct reasons — performance, reorganization, position elimination. When the aggregate effect is the loss of fifty or more positions at a single site, the characterization does not control. The statute looks at outcomes, not labels.
The “unforeseeable business circumstances” exception. Both the federal and California statutes provide a narrow exception when the closing or layoff is caused by business circumstances that were not reasonably foreseeable at the time notice would have been required. Employers invoke this exception broadly; courts apply it narrowly. A general economic downturn does not, by itself, make a layoff unforeseeable. The employer must show that the specific event that necessitated the layoff — the loss of a major contract, a sudden regulatory action, an abrupt market collapse — was not reasonably anticipated sixty days before the layoff occurred. Financial difficulty alone is not enough. An employer that has been losing money for months cannot credibly claim that the eventual layoff was unforeseeable.
Failure to include required information. The notice itself has specific content requirements: the expected date of the layoff, whether it is expected to be permanent or temporary, the job titles and number of affected employees, and contact information for a company official who can provide additional details. A notice that omits required information may be treated as no notice at all.
What the statute gives affected workers
The remedy under both statutes is straightforward: back pay and the value of benefits for each day of the violation period, up to sixty days. For a worker earning a moderate salary, that is a meaningful sum. For a layoff affecting hundreds of workers, the aggregate liability can be substantial.
Under the federal statute, the employer may also be liable for a civil penalty of up to five hundred dollars per day, payable to the local government, if notice to the local government was also deficient. Under both statutes, the prevailing employee is entitled to reasonable attorney’s fees and costs.
These claims can be brought individually or as class actions, and in practice, WARN Act cases are often litigated on a class-wide basis — all affected employees asserting the same notice violation arising from the same event.
The claim most employees miss
WARN Act claims are among the most underasserted in California employment law. Many employees who are laid off as part of a large reduction in force do not know the statute exists. They do not know that the employer was required to give them sixty days’ advance notice, and they do not know that the failure to do so gives rise to a damages claim worth up to sixty days of pay.
The analysis is fact-specific but not complicated. The relevant questions are: How many employees were affected? Over what period of time? How much notice was given? Were the statutory thresholds met? Did any exception apply? These are questions an employment attorney can evaluate quickly based on facts the employee typically has: the date of the layoff, the number of coworkers who were laid off, and the amount of advance notice they received.
If you were laid off as part of a reduction in force and received less than sixty days’ advance notice, the employer may have violated the WARN Act. The statute provides a concrete remedy: the pay and benefits you should have received during the notice period you were denied.
This article is general information about California law and is not legal advice. Every situation turns on its particular facts.