NJ WARN Notice: 90-Day Rule, Severance, and Penalties

Under the New Jersey WARN Act, a covered employer must give you at least 90 days’ written notice before a mass layoff, plant shutdown, or transfer of operations that costs 50 or more people their jobs, and it must pay every affected worker severance equal to one week of pay per full year of service. If the notice runs even one day short, each worker is owed an additional four weeks of pay on top of that severance. These state protections are stricter than the federal WARN Act and apply on top of it.¹

Which Employers Have to Give Notice

The law applies to any private employer with 100 or more employees that runs an “establishment” in New Jersey. Every worker counts toward that 100-person threshold. Part-time staff, short-tenure staff, full-time staff — the state statute makes no distinction, which is a departure from federal WARN.¹

State and local government agencies aren’t covered; the definition of “employer” reaches only private individuals and business entities.² The establishment itself must have been operating for more than three years, and temporary construction sites are excluded.

One point worth understanding after the 2023 amendments: an “establishment” can now be a group of the employer’s locations across the state, not just a single site. If your employer closes two smaller offices in different New Jersey cities and the job losses together hit 50, that’s a WARN event even though no single site would have triggered it on its own.

What Counts as a Triggering Layoff

Three kinds of workforce actions trigger the notice and severance obligations, provided 50 or more employees lose their jobs within any 30-day window:

A termination of operations, meaning a permanent or temporary shutdown of an establishment or of one or more facilities inside it.
A transfer of operations to a different location, inside or outside New Jersey, when the move causes job losses at the original site.²
A mass layoff, meaning a reduction in force that terminates 50 or more employees at or reporting to the establishment during any 30-day period.¹

The 30-day window is a rolling one. If your employer cuts 40 people one week and 15 more two weeks later, those numbers are added together and the WARN threshold is met. Staggering layoffs across a few months to duck the count is harder in practice than it looks.

The 90-Day Notice

A covered employer must deliver written notice at least 90 days before the first termination takes effect. The statute technically requires 90 days or whatever the federal WARN Act demands, whichever is longer; because federal notice is only 60 days, the state’s 90-day rule always controls.¹ The window was 60 days before the 2023 amendments raised it.

Notice has to go to four parties:

Each affected employee, or the union that represents them.
The chief elected official of the municipality where the establishment sits, usually the mayor.
The Commissioner of the Department of Labor and Workforce Development.
The state’s rapid response team, which the employer must let onto the site to work with displaced workers.¹

The state provides an official notification form. Employees, unions, and the local mayor get a hard copy; the Commissioner is now notified through an online portal, with email or USPS mail as fallback options.³ If a dispute arises later, the employer carries the burden of proving the notice went out on time, so proof of delivery matters.

Severance You’re Entitled To

Severance under NJ WARN is mandatory, not discretionary. Every affected employee is entitled to one week of pay for each full year worked for the employer. Twelve years of service means 12 weeks of severance.¹

The pay rate used for the calculation is the higher of two figures: your final regular rate of compensation, or your average regular rate over your last three years on the job. The employer uses whichever is more favorable to you.

The statute treats this severance as compensation earned in full at the moment employment ends. It isn’t a benefit the employer can decline to pay. If a separate severance plan or collective bargaining agreement provides more, you get the larger amount, but the employer cannot substitute anything smaller for the statutory floor. A worker’s attempt to waive these rights is invalid unless approved by a court or by the Commissioner of Labor.²

The Four-Week Penalty for Short Notice

If your employer gives less than the full 90 days of notice, every affected employee is owed an additional four weeks of pay on top of the standard severance. The penalty is flat. Eighty-nine days of notice draws the same four weeks as zero days.¹

The totals add up fast. A worker with 20 years of service who receives short notice is owed 20 weeks of standard severance plus 4 penalty weeks, or 24 weeks of pay. Multiplied across a workforce, the cost of cutting the notice period short quickly exceeds whatever the employer thought it would save by moving quickly.

When the Law Doesn’t Apply

Some events are carved out of the definition of “mass layoff” entirely, and neither the notice nor the severance rules attach. Job losses caused by a fire, flood, natural disaster, national emergency, act of war, civil disorder, or industrial sabotage fall outside the statute. The same carveout covers healthcare facilities that lose Medicare or Medicaid certification or have their operating license revoked.²

These exceptions are narrower than employers sometimes suggest. A general economic downturn doesn’t qualify. The loss of a major customer doesn’t qualify. Federal WARN has separate exceptions for “unforeseeable business circumstances” and “faltering companies” that permit reduced notice, but those are federal doctrines that apply to the federal 60-day requirement, not to New Jersey’s 90 days.⁴ A struggling employer might be able to shorten federal notice while still owing the full 90 days under state law.

How This Differs From Federal WARN

Federal WARN does not preempt state law. Employers in New Jersey have to satisfy both, and where the two conflict, the stricter rule wins.⁵ The state version is stricter on essentially every point:

Notice is 90 days under New Jersey law and 60 days under federal law.⁶
Federal WARN excludes part-time employees and workers with less than six months on the job from its counts. New Jersey counts everyone.⁷
Federal WARN looks at a single site of employment. New Jersey aggregates the employer’s locations across the state.
Federal WARN requires no severance at all. Its only remedy is back pay covering the missing notice period. New Jersey requires severance regardless of whether notice was on time.
For late notice, federal law awards back pay for the shortfall. New Jersey adds a flat four weeks regardless of how short the notice was.

How to Enforce Your Rights

The New Jersey Department of Labor doesn’t enforce the WARN Act. Its role is limited to receiving the notification form and coordinating the rapid response team.⁸ If your employer skipped the 90-day notice or refuses to pay the severance you’re owed, the way to recover is through the courts. Affected workers can sue for the unpaid severance, the four-week penalty, and potentially attorney’s fees.

WARN cases are often filed as class actions covering all affected employees at once, which spreads legal costs and increases settlement pressure. If you’ve been laid off from a covered New Jersey employer without the notice or severance the statute requires, talking to an employment lawyer promptly protects your ability to recover what you’re entitled to.

1
New Jersey Revised Statutes. New Jersey Code 34:21-2 – Requirements for Establishments Subject to Transfer, Termination of Operations, Mass Layoffs
2
New Jersey Department of Labor and Workforce Development. New Jersey Code 34:21-1 and 34:21-2 – Plant Closings, Transfers, Mass Layoffs
3
New Jersey Department of Labor and Workforce Development. File a WARN Notice
4
eCFR. 20 CFR 639.9 – When May Notice Be Given Less Than 60 Days in Advance?
5
U.S. Department of Labor. Employment Law Guide – Notices for Plant Closings and Mass Layoffs
6
Office of the Law Revision Counsel. 29 USC 2102 – Notice Required Before Plant Closings and Mass Layoffs
7
U.S. Department of Labor. Plant Closings and Layoffs
8
New Jersey Department of Labor and Workforce Development. Millville Dallas Airmotive Plant Job Loss Notification Act Notification Form