California is the second-largest source of reported layoffs in Layoff Atlas's current data, with 14,001 workers across the 90-day window — behind only Washington's 17,073. One reason California's numbers look so complete is that the state does not rely on federal law alone: it has its own version of the WARN Act, known as Cal-WARN, and in several important ways it reaches further than federal law.
The federal baseline
The federal WARN Act generally applies to employers with 100 or more full-time employees. It requires 60 days' written notice before a plant closing affecting 50 or more full-time employees, or a mass layoff affecting either 500 or more full-time employees, or 50 to 499 full-time employees if they make up at least one-third of the workforce at a single site of employment.
Part-time employees — those working fewer than 20 hours a week on average, or employed for fewer than six of the preceding twelve months — do not count toward the federal 100-employee threshold, and are not counted in the layoff totals that trigger notice. That is one of the main reasons federal WARN covers fewer layoffs than many people expect.
California's lower threshold: 75 employees
Cal-WARN applies to a "covered establishment" — generally an industrial or commercial facility, or part of one, that employs, or has employed within the preceding twelve months, 75 or more persons, including both full-time and part-time employees.
An employer with 80 employees, many part-time, may fall outside federal WARN entirely and still be covered by Cal-WARN — and California counts part-time workers in its totals in ways federal law does not.
Triggers without the one-third rule
Cal-WARN requires 60 days' notice before a mass layoff, relocation, or termination. Its definition of a mass layoff is a layoff of 50 or more employees during a 30-day period — with no requirement that those employees make up one-third of the workforce.
Under federal law, a layoff of 60 workers at a 300-person site would not trigger notice, because 60 is less than one-third of 300. Under Cal-WARN, it would. That single difference explains why some California filings appear in the data even though the same layoff in another state might not produce a federal WARN notice at all.
California also covers relocations — moving all or substantially all of a plant's operations to a different location at least 100 miles away — as a triggering event in its own right.
Notice, and who receives it
Like federal WARN, Cal-WARN requires 60 days' written notice. Notices go to affected employees, the state Employment Development Department, the local workforce investment board, and the chief elected official of the city and county where the layoff occurs. California also requires notice to any employee representative, such as a union.
Employers must also give notice when a layoff is extended: if a layoff originally announced as lasting six months or less is extended beyond six months, additional notice is required.
Penalties for falling short
The consequences are similar in structure to federal WARN, but California adds its own civil penalty. An employer that fails to give the required notice can be liable for back pay and the value of lost benefits for each day of the violation, up to 60 days. California also imposes a civil penalty of $500 per day for each day of violation, payable to the state, although that penalty can be avoided if the employer pays the affected employees within three weeks of the layoff or termination.
As with federal WARN, employers can raise narrow defences — for example, a physical calamity or a failed good-faith effort to raise capital — but the employer bears the burden of proving them.
What this means for reading California's numbers
California's broader coverage shows up in the data in two ways. First, more layoffs qualify for notice, so more of them become public records. Second, the state's filings often include part-time and smaller-site layoffs that would be invisible under federal thresholds alone.
That does not mean California's numbers are a complete count of job losses in the state. Layoffs below 50 employees, and layoffs by employers below the 75-employee threshold, still fall outside Cal-WARN. And as with every WARN record, these figures are reported plans, not confirmed job losses — a filing can be delayed, reduced, or withdrawn, and effective dates can change.
The national picture
Across the country, Layoff Atlas currently tracks 682 notices covering 65,796 reported workers in its 90-day window, with 33 counts unavailable. The top states are Washington (17,073 workers), California (14,001), Illinois (4,626), Texas (3,652), and Ohio (3,180). Upcoming effective weeks remain heavy: 5,503 workers in the week of October 26, 5,061 in the week of November 2, 6,568 in the week of November 9, 6,145 in the week of November 16, 6,120 in the week of November 23, and 5,592 in the week of November 30.
California's share is not just a story about the size of its economy. It is also a story about a state law deliberately written to catch more layoffs than the federal floor.
This article is general information, not legal advice. Workers who believe they were entitled to notice and did not receive it can contact California's Employment Development Department or an employment lawyer.
Data source: Layoff Atlas
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