WARN Act and Multi-State Employers: Which State's Rules Apply When Layoffs Cross State Lines

A single employer name often shows up in several states' WARN records in the same week. Comcast recently filed three WARN records totalling 912 workers across Pennsylvania, Washington, and New Jersey. The Children's Place has two current filings: 593 workers in Fort Payne, Alabama, effective January 5, 2027, and 732 in New Jersey, effective February 4, 2027.

When the same company cuts jobs in more than one state, which law protects the workers? The WARN Act applies site by site, and each state's own layoff-notice law applies to the workers at sites inside that state.

The core rule: one site, one state's law

The federal WARN Act sets a national floor, not a single national procedure. It requires employers with 100 or more full-time employees to give 60 days' written notice before a plant closing or mass layoff, measured per "single site of employment." Notice goes to the workers at that site (or their union representative), the state dislocated worker unit, and the chief elected official of the local government where the site sits.

That site-by-site structure is what makes multi-state layoffs work the way they do. An employer laying off workers in five states files five sets of notices, under five states' rules, on five states' timelines. There is no option to pick the weakest state's law and apply it everywhere.

The federal baseline

Under the federal law, a plant closing that affects 50 or more full-time workers triggers notice. A mass layoff triggers notice when it affects 500 or more full-time workers, or 50 to 499 workers if they make up at least a third of the workforce at that site. The notice period is 60 days.

Those thresholds are measured at each site, not across the whole company — so an employer with 80 workers at ten sites may owe no federal notice at all, which is why the state laws matter so much.

State mini-WARN laws change the answer

About a dozen states add their own layoff-notice laws, and they differ sharply:

• New York requires 90 days' notice and covers employers with 50 or more employees, with lower thresholds for plant closings.
• New Jersey requires 90 days' notice and mandatory severance — one week of pay per year of service — for covered employers.
• California requires 60 days' notice but covers employers with 50 or more employees, and counts part-time workers toward coverage in ways the federal law does not.
• Illinois covers employers with 75 or more employees.
• Maine requires 90 days' notice and severance for covered establishments.
• Hawaii requires 60 days' notice, plus a dislocated worker allowance and $500-a-day fines for violations.

So the same employer's layoff can carry a 60-day clock in one state and a 90-day clock in another, with severance owed in one state and not in the other — decided by the location of the worker's site, not the employer's headquarters.

Two filings, two clocks: The Children's Place

The Fort Payne, Alabama filing covers 593 workers, with notice dated November 6, 2026 and an effective date of January 5, 2027 — exactly 60 days, the federal minimum, in a state with no mini-WARN law. The New Jersey filing covers 732 workers effective February 4, 2027, with no notice date in the registry. If the New Jersey workers are covered by that state's law, the employer owes them 90 days' notice and severance — a materially different package from the Alabama workers' federal minimum, for the same employer's layoffs in the same season.

The 90-day aggregation rule

One more rule matters: federal regulations add together layoffs at a single site within a 90-day period when testing the thresholds. Thirty workers in March plus 30 in May at the same site counts as 60 — enough to cross a threshold neither round met alone. But layoffs at different sites in different states are never combined into one federal filing.

What counts as a "single site" is also a real question in multi-state cases: separate buildings in the same area can count as one site, while genuinely separate facilities are separate sites, and a remote worker's site is generally their assigned work location.

What workers should check

If your employer operates in several states, check the filing in the state where you actually work — not where headquarters sits. Confirm three things: the notice date and effective date on your site's filing, whether your state has a mini-WARN law with a longer notice period or severance, and whether the notice went to the right recipients — you or your union, the state dislocated worker unit, and your local government.

The national picture right now: Layoff Atlas tracks 654 WARN notices covering 60,606 reported workers in its 90-day window, with 30 notices carrying no worker count. California leads with 20,789 reported workers, followed by Washington with 17,387. Scheduled effective weeks ahead include November 12 (7,578 workers), November 19 (8,412), November 26 (6,032), December 3 (1,919), December 10 (1,959), and December 17 (5,347).

All of these figures describe reported plans, not confirmed job losses: some plans change, and not every planned layoff happens exactly as filed. But the rules that govern them turn on where you work, not where your employer is headquartered.

Data source: Layoff Atlas