New Jersey WARN Act: Employer Requirements
New Jersey WARN Act rules: 90 days notice, a 100-employee threshold counting part-timers, a statewide layoff trigger, and mandatory severance pay.
New Jersey WARN Act: Employer Requirements
The strictest layoff notice law in the country and the only one where severance is required by statute rather than by agreement. Ninety days of notice, a statewide trigger that counts part-time staff, one week of pay per year of service owed even when notice is perfect, and four more weeks when it is not.
New Jersey has the strictest layoff notice law in the United States, and it is the only one that turns severance into a statutory obligation rather than a negotiation. Ninety days of notice instead of the federal sixty. A threshold counted across the whole state rather than at one site. Part-time employees counted where federal law excludes them. And one week of pay per full year of service owed to every affected employee, whether or not the notice was perfect.
That last point is what makes this different in kind from the federal WARN Act. Elsewhere, a notice failure creates a risk of litigation. In New Jersey, a covered reduction creates a calculable payroll cost on the day it happens, before anyone disputes anything. Anyone budgeting a reduction in force in New Jersey needs that number in the model from the start.
Does New Jersey Have One?
Yes. The formal name is the Millville Dallas Airmotive Plant Job Loss Notification Act, and it is referred to everywhere as the NJ WARN Act. It operates alongside federal WARN, and where the two differ the New Jersey requirements are stricter on essentially every axis.
The notice period illustrates how the two interact. New Jersey requires 90 days, or the period required by federal law, whichever is longer. Satisfying the federal 60 does not satisfy New Jersey, and an employer complying with both simply works to the 90-day clock.
Which Employers Are Covered
Employers with 100 or more employees. The 2023 amendments changed how that number is reached, and the change pulls in employers who were previously outside the law.
| Counting question | Before April 2023 | Now |
|---|---|---|
| Part-time employees | Excluded from the count | Counted, regardless of hours worked |
| Employees under six months of service | Excluded from the count | Counted |
| Where the 100 is measured | Employees in New Jersey | 100 or more employees, without regard to full-time or part-time status |
| Layoff trigger scope | At a single establishment | Across the entire state |
| Percentage requirement | 50 or more who were one third of the establishment, or 500 or more | No percentage requirement at all |
Two rows there do most of the damage to an employer's assumptions. Counting part-time employees toward the 100 means a retail or hospitality business with a large hourly roster can be covered while believing it is well below the line. And removing the percentage requirement means the familiar federal arithmetic, where 50 separations only matter if they represent a third of the site, simply does not apply.
What Triggers Notice
Three events trigger the obligation: a mass layoff, a termination of operations, or a transfer of operations. The mass layoff definition is where New Jersey departs most sharply from federal law.
A mass layoff is a reduction in force, not resulting from a transfer or termination of operations, that terminates 50 or more employees at or reporting to an establishment during any 30-day period. The 50 are counted statewide, part-time employees included, with no percentage test.
The reach extends to remote workers. The trigger counts employees at or reporting to an establishment, which brings in people who work remotely, including non-residents, where a New Jersey location is their reporting home. For a distributed team with a New Jersey office at the centre of it, the WARN headcount can be considerably larger than the number of desks.
The 90-Day Notice
Ninety days of advance written notice, or the federal period if longer. The notice content requirements are more detailed than the federal ones.
| Required element | Detail |
|---|---|
| Numbers and dates | The number of employees whose employment will be terminated and the dates on which the action and each termination will occur |
| Reason | The reason for the mass layoff, transfer of operations, or termination of operations |
| Alternative employment | Any employment available at another establishment operated by the employer, with pay, benefits, other terms, and the location |
| Employee rights | Rights as to wages, severance pay, benefits, pension, and other terms, including rights under any collective bargaining agreement |
| Statutory severance | The severance entitlement should be stated, since it applies regardless of whether notice was timely |
The alternative-employment disclosure has no federal counterpart and is easy to overlook. If the company has openings at another New Jersey establishment, the notice has to say so and describe the terms, not merely mention that transfers may be possible.
Mandatory Severance Pay
Every affected employee is entitled to severance of one week of pay for each full year of employment. This is owed whether or not the employer gave proper notice. If the full 90 days was not given, each affected employee is entitled to four additional weeks on top.
The weekly rate is the higher of the employee's average regular rate of compensation over their last three years of employment or the final regular rate paid to them. Payment is made as a lump sum on the first regularly scheduled payday after the employee's final date of employment.
Here is what that produces in practice, at an illustrative regular rate of $1,200 per week.
| Full years of service | With 90 days notice | With short notice | Cost at $1,200 per week, short notice |
|---|---|---|---|
| Under 1 year | No statutory weeks | 4 weeks | $4,800 |
| 2 years | 2 weeks | 6 weeks | $7,200 |
| 5 years | 5 weeks | 9 weeks | $10,800 |
| 10 years | 10 weeks | 14 weeks | $16,800 |
| 15 years | 15 weeks | 19 weeks | $22,800 |
| 20 years | 20 weeks | 24 weeks | $28,800 |
Multiply across a workforce and the shape of the obligation becomes clear. A reduction of 50 employees averaging seven years of service at that rate carries roughly $420,000 in statutory severance with proper notice, and about $708,000 without it. The four-week penalty applies per employee, not once, which is why a missed notice in New Jersey is an order of magnitude more expensive than elsewhere.
Note also what this does to the usual planning logic. In most states, severance is discretionary and often used to reduce WARN exposure. In New Jersey the statutory amount is a floor that exists independently, so the conversation about additional severance pay starts above it rather than at zero.
Who Receives the Notice
Four recipients, and notably two different delivery mechanisms. The state notification goes through an online form; the other three go on a hard copy form.
Splitting the submission across two channels is a practical trap. An employer that completes the online form to the Commissioner and assumes that covers the filing has not notified the municipality, and an employer that sends paper to everyone has not notified the Commissioner in the required manner. Confirm the current forms and submission method with the department before filing (New Jersey Department of Labor and Workforce Development).
Penalties and Enforcement
The core exposure is the severance itself, which is why New Jersey is different: the cost arrives with the layoff rather than with a lawsuit. On top of that sit the four additional weeks per employee for short notice, and litigation exposure including attorney fees.
That fact is worth sitting with, because it cuts both ways. There is no agency to call, no compliance conference, and no administrative route to resolve a borderline situation before it becomes a claim. And because no agency has rulemaking authority, several ambiguities introduced by the 2023 amendments have not been resolved by regulation, so employers navigate them with legal advice rather than official guidance.
The department does publish filed WARN notices in a public archive, which means a filing that does not match the actual event is visible to anyone who looks, including plaintiff counsel.
New Jersey vs Federal
Both laws can apply to the same reduction. Complying with federal WARN does not discharge the New Jersey obligation on any of the points below.
| Requirement | Federal WARN | New Jersey |
|---|---|---|
| Employer threshold | 100 or more, excluding part-time | 100 or more, including part-time and short-tenure employees |
| Notice period | 60 days | 90 days, or the federal period if longer |
| Layoff trigger | 50 to 499 at a single site if 33 percent, or 500 or more | 50 or more statewide, no percentage requirement |
| Remote employees | Assigned to a single site of employment | Counted where they report to a New Jersey establishment |
| Severance | Not required | One week per full year of service, mandatory |
| Short notice penalty | Back pay and benefits up to 60 days | Four additional weeks of pay per employee |
| Release of claims | Not addressed | Severance cannot be conditioned on a release |
| Enforcement | Federal district court; DOL does not enforce | Private litigation; state agency has no enforcement authority |
The severance row is the one that changes decisions rather than paperwork. New Jersey is the exception to the general rule that no state requires severance, covered alongside the others in our guide to which states require severance pay.
New Jersey shares the 90-day notice period with only one other state. New York also requires 90 days but takes a different route to breadth, covering employers at 50 rather than 100 and adding relocation and reduced-hours triggers, without any severance mandate. An employer operating in both works to 90 days either way, but owes statutory severance on the New Jersey side only.
Under the Threshold
Below 100 employees, NJ WARN does not apply and no statutory severance is owed. That is most small businesses in the state, and it is worth stating plainly because the severance rule generates a lot of anxiety among employers who are nowhere near the threshold.
Count carefully before concluding you are below it, though. Part-time staff and people with under six months of service now count, so a business with 70 full-time and 40 part-time employees is over the line even though it thinks of itself as a 70-person company.
If you are genuinely below, the remaining obligations are the ordinary ones. The New Jersey final pay deadline comes first, covered in our guide to the final paycheck for a terminated employee. Then a written termination letter, a documented offboarding sequence, same-day access removal, and a retained record of how people were selected.
Any severance you choose to offer in that situation is voluntary and can be exchanged for a release, which is the normal arrangement everywhere except a covered NJ WARN event. A severance letter that states the amount, the timing, and what is being agreed keeps that clean.
Running the sequence as an assigned workflow rather than an email thread is what FirstHR handles: separation documents go out for e-signature with a dated record, offboarding tasks are assigned and tracked, and everything files against the employee profile. FirstHR is an onboarding and HR platform, not a law firm and not a payroll provider, so it does not determine WARN coverage, calculate statutory severance, or issue payments. Applicant tracking is coming soon to FirstHR.
Frequently Asked Questions
Does New Jersey have its own WARN Act?
Yes, and it is the strictest in the country. The Millville Dallas Airmotive Plant Job Loss Notification Act, universally called the NJ WARN Act, was substantially amended effective April 10, 2023. It applies to employers with 100 or more employees, requires 90 days of advance written notice rather than the federal 60, counts the layoff threshold across the entire state rather than at a single establishment, and requires severance pay of one week per full year of service to every affected employee. New Jersey is the only state where severance is a statutory entitlement in a layoff rather than something negotiated. Because the amendments changed several rules at once, guidance published before April 2023 describes a materially different law and should not be relied on.
How much severance does the NJ WARN Act require?
One week of pay for each full year of employment, payable to every affected employee even when the employer gives the full 90 days of notice. If the employer fails to give the full 90 days, each affected employee is entitled to an additional four weeks of pay on top. The weekly rate is the higher of the employee's average regular rate of compensation during their last three years of employment or the final regular rate paid to them. The severance is paid as a lump sum on the first regularly scheduled payday after the employee's final date of employment. Before the 2023 amendments, severance was only owed when notice was short; now it is owed regardless, which changed it from a penalty into a standing cost of any covered reduction in New Jersey.
Can NJ WARN severance be conditioned on signing a release?
No. The statutory severance is payable automatically and cannot be conditioned on an employee signing a release of claims. It is treated as compensation due for back pay earned by the employee rather than as a settlement payment, which is why it cannot be exchanged for a waiver. An employer that wants a release still can obtain one, but it has to offer additional consideration beyond the statutory severance, because the statutory amount is already owed. This is a common and expensive misunderstanding: presenting the required severance inside a separation agreement as though it were the consideration for the release leaves the employer having paid what it owed anyway and holding a release that may not be enforceable. This is general information, not legal advice.
How many employees trigger the NJ WARN Act?
The employer must have 100 or more employees, and after the 2023 amendments that count includes part-time employees and employees with less than six months of service, which federal WARN excludes. The layoff trigger is 50 or more employees terminated within a 30-day period, again counting part-time as well as full-time. Crucially, the 50 are counted across the entire state rather than at a single establishment, and there is no requirement that they make up any particular percentage of the workforce. A company with five New Jersey locations losing ten employees at each has arguably reached the trigger. Multiple rounds of layoffs within a 90-day period are aggregated unless the employer can show a separate cause for each round.
Who enforces the New Jersey WARN Act?
Not the state labor department. The New Jersey Department of Labor and Workforce Development states plainly that it has neither enforcement authority nor rulemaking authority under the Act, and that its role is limited to dispatching the rapid response team and making the notification form available to employers. Enforcement therefore runs through private litigation by affected employees. That has two practical consequences. There is no agency to negotiate with, no compliance conference, and no administrative process that might resolve a problem short of court. And the absence of agency rulemaking means several ambiguities in the amended statute have not been clarified by regulation, so employers face the interpretive questions without official guidance to rely on.
Do remote employees count toward the NJ WARN Act?
They can. The trigger counts employees at or reporting to an establishment in New Jersey, which reaches employees who work remotely but report into a New Jersey location, including non-residents. That is a broader reach than the federal single-site analysis, and it matters for any employer whose New Jersey office serves as the reporting home for a distributed team. Combined with the statewide counting rule and the inclusion of part-time employees, the practical effect is that a New Jersey headcount for WARN purposes is often larger than employers expect when they first run it. Run the count on the reporting relationship rather than on who physically sits in the building before concluding a reduction is below the threshold.