Layoffs with no notice: what the WARN Act covers and leaves out

Groundwork research · Published October 30, 2026 · Data as of October 30, 2026 · 5 min read

A company can end hundreds of jobs in one day, and the layoff may leave no trace in the public layoff notices. The federal WARN Act asks a covered employer for 60 days of written notice before a closing or mass layoff at a US site. Some of the workers that headlines count sit outside the law, and the employer may shorten the notice in set circumstances. This page sets out who the law reaches, who falls outside it, and what the notices on file can tell you about a layoff in the news.

Days of notice the law asks for

Received written notice

45%

of 3.3 million long-tenured displaced workers, BLS

Notices on file, past 12 months

4,099

naming 356,226 workers

What the WARN Act asks of an employer

The Worker Adjustment and Retraining Notification Act, 29 U.S.C. 2102, bars a covered employer from ordering a plant closing or mass layoff until 60 days after it serves written notice. The notice goes to three places: each affected employee or the employees' representative, the state's rapid response agency, and the chief elected official of the local government where the closing or layoff happens.

The regulation, 20 CFR 639.3, sets the sizes that trigger it:

The employer has 100 or more employees, excluding part-time employees, or 100 or more including part-time employees who together work at least 4,000 hours a week, overtime hours excluded.
A plant closing is a shutdown of a single site, or of a facility or operating unit within it, that causes an employment loss for 50 or more employees, excluding part-time employees, in any 30-day period.
A mass layoff at a single site causes an employment loss in any 30-day period for at least 50 employees, excluding part-time employees, and for at least 33% of the site's active employees, excluding part-time employees. Where 500 or more are affected, the 33% condition drops away.

An employment loss is a termination other than a discharge for cause, a voluntary departure or a retirement; a layoff that lasts longer than 6 months; or a cut of more than 50% in an employee's hours in each month of a 6-month period (20 CFR 639.3(f)).

Who falls outside it

Each condition above names an employer and a site, and a layoff has to meet them together. Four kinds of layoff in the news commonly sit outside the law:

Workers at foreign sites. The regulation places foreign sites of employment outside WARN. A layoff of staff in India or the Philippines files nothing with a US state, whatever the company's size. US workers at a foreign site still count toward the 100-employee test.
Contract workers. The regulation treats independent contractors and subsidiaries as separate employers or as part of the parent, depending on how independent they are: common ownership, shared officers, actual control and unified personnel policies all count. Workers who belong to a separate contractor look to that contractor for notice, and the business they were assigned to has none to give them.
Small sites and small cuts. A cut of fewer than 50 workers at one site, or an employer with fewer than 100 employees, files nothing under federal law. Some states reach smaller cuts.
Cuts divided among separate sites. The count is per single site of employment. Non-contiguous sites that share neither staff nor operational purpose count apart, so pieces under 50 at such sites file nothing, while premises in reasonable geographic proximity that share staff, equipment and purpose can form one site. The employer also adds up cuts that are each too small across any 90-day period, unless it shows the losses came from separate and distinct actions and causes and were no attempt to evade the Act.

When the 60 days can shorten

The statute names three cases where an employer may order a closing or layoff sooner: business circumstances that were unforeseeable when notice would have been due; a faltering company seeking capital or business that notice would have blocked, which applies to plant closings only; and a closing or layoff that results directly from a natural disaster. An employer that shortens the period gives as much notice as practicable and attaches a brief statement of the reason (20 CFR 639.9). The Department of Labor's WARN page says the federal courts alone enforce the Act. A state listing records what an employer filed and carries no finding on whether the employer complied.

What people report receiving

BLS asks displaced workers directly. In the January 2026 Displaced Workers Supplement to the Current Population Survey, about 45% of the 3.3 million workers who lost a job held for three years or more said they received written advance notice, and 58% of those whose plant or company closed down or moved did (table 3). The survey counts workers at employers of every size, so it describes who received notice and says nothing about who was owed it.

What the notices on file show

In the 12 months to October 20, 2026, the open WARN Notice Register holds 4,099 notices naming 356,226 workers, counted as the layoff pages count them. Every one of those is a filing for a US site. A reported layoff that matches no notice has several possible explanations: the workers sat abroad, the employer held them as contractors, the cut fell under a threshold, the employer shortened the notice, the state has yet to post the filing, or the employer gave no notice that the law required.

Reading the next layoff headline

Where did the workers sit? A US site can file. A foreign site has no US filing to make.
Were they employees of the company named, or of a contractor it hired?
How many were at one site? Fifty is the line for most cuts.
Search the company on the layoff notices pages and read the dates. Compare the dates, then read the source document. The listing alone cannot establish that the employer complied: the law also sets who receives the notice, how it is served and what it contains.

How to read layoff notice data covers what each field of a notice holds and why some notices are missing, and What happens after a layoff follows the workers who lost a job.

Sources and method

Law: 29 U.S.C. 2102 (notice period, recipients, reduction of the period) and 20 CFR 639.3 (employer, plant closing, mass layoff, foreign sites, independent contractors and subsidiaries), read on October 30, 2026; the Department of Labor's WARN page for who enforces the Act. Survey: BLS Worker Displacement: 2023-2025 (USDL-26-1423, released August 27, 2026), January 2023 and December 2025, table 3, each value as BLS prints it. Notices: the open WARN Notice Register, October 21, 2025 to October 20, 2026, a repeat counted once and a notice the register labels left out; these are the figures on the displaced-worker article. This page summarizes federal law in plain words and applies to no particular layoff.

Informational only; not legal, immigration, or financial advice.

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