WA State WARN Act: Notice Rules, Exceptions, and Penalties

The Washington State WARN Act requires employers with 100 or more employees to give at least 60 days’ written notice before a plant closing, mass layoff, or sustained reduction in work hours. Notice goes to affected workers, the state Employment Security Department (ESD), and the chief elected official of the local community. The state version, titled “Mass Layoffs and Business Closings,” took effect in July 2025 and layered broader coverage and stiffer penalties on top of the federal Worker Adjustment and Retraining Notification Act.¹

Which Employers Are Covered

WARN applies to any private or nonprofit employer with 100 or more full-time workers. Employees who have worked fewer than six months in the past year, or who average fewer than 20 hours per week, don’t count toward that total.² There’s an alternative path to coverage: an employer with 100 or more employees, including part-timers, also qualifies if that group collectively works at least 4,000 hours per week, not counting overtime.³ Government employers are excluded.

One detail trips up employers: part-time workers don’t count toward the 100-employee threshold, but they are still entitled to receive notice if the layoff will cost them their jobs.⁴

What Triggers a 60-Day Notice

Three categories of workforce changes require notice.⁵

Plant closings: shutting down a facility or operating unit at a single worksite when the closure affects 50 or more full-time employees, whether permanent or temporary.
Mass layoffs: laying off, during any 30-day period at a single site, either 500 or more full-time employees, or at least 50 full-time employees when that group makes up at least 33 percent of the active workforce.⁶
Reduced hours: cutting work hours for 50 or more employees by more than 50 percent during each month of a six-month period.

An “employment loss” under the law means a termination (other than firing for cause, a voluntary quit, or retirement), a layoff lasting longer than six months, or that sustained hours reduction.⁶ Routine turnover and seasonal changes don’t trigger the requirement.

The 90-Day Aggregation Rule

Employers can’t dodge WARN by splitting a large layoff into smaller rounds. If separate employment losses happen within any 90-day window and each round falls below the threshold on its own but together they meet it, notice is required for every round, unless the employer can show each round arose from a genuinely separate cause.⁷ If you’re planning two or three rounds of cuts at the same site within a few months, count the total before deciding whether WARN applies.

Exceptions That Shorten the 60 Days

Three situations allow fewer than 60 days’ notice. Even when one applies, the employer must still give as much notice as possible and include a brief written explanation of why the full 60 days wasn’t feasible.⁸

Faltering company: applies only to plant closings, not mass layoffs. The employer must have been actively pursuing financing or new business that would have kept the site open, and must have reasonably believed that giving notice would have scared off the deal. Courts read this exception narrowly.
Unforeseeable business circumstances: applies to both closings and mass layoffs when the triggering event was sudden, dramatic, and outside the employer’s control. Examples include a major client unexpectedly canceling a contract or a key supplier’s workers going on strike.⁹
Natural disaster: when a closing or layoff results directly from a flood, earthquake, storm, or similar event. If the workplace is destroyed and employee records are lost, the employer should demonstrate good faith by posting notices at the site or publishing a notice in a local newspaper.¹⁰

Employers often overestimate how much these exceptions protect them. The faltering-company exception in particular demands strong evidence of an active, identified deal that notice would have undermined, not just a general hope that something might come through. Workers who believe an employer improperly claimed an exception can challenge it in federal court.

What the Notice Must Say

Every version of the notice includes a core set of facts: the name and address of the affected worksite, a company contact’s name and phone number, whether the action is expected to be permanent or temporary, and the anticipated date of the first separation.¹¹

Notices to union representatives must also list the job titles of affected positions, the names of the workers holding those jobs, and the expected schedule for separations. Notices going directly to individual employees without union representation must be written in understandable language, state whether bumping rights exist, and give the specific date that particular employee will be separated.¹¹

Washington’s ESD asks for more. The notice should be on company letterhead and should specify whether the layoff is due to a relocation, whether the employer is contracting out positions, the total number of affected employees, and job titles with names and addresses of those affected.⁵

How To File a WARN Notice in Washington

Notice must reach two government recipients at least 60 days before the first separation: the Employment Security Department and the chief elected official of the community where the closure or layoff will take place, typically a mayor, city council chair, or county leader.⁵

The fastest way to file with ESD is by email. Send the notice letter to ESDGPLayoffAssistance@esd.wa.gov with “WARN” in the subject line. To mail it instead, use:

Employment Security Department
Grants Management Office
Attention: WARN Team
P.O. Box 9046
Olympia, WA 98507-9046⁵

Notices to employees can go out by any reasonable delivery method: first-class mail, personal delivery, or insertion into pay envelopes. A pre-printed, recurring notice stuffed into every paycheck doesn’t count. The notice has to be specific to the planned action.¹²

After ESD receives the notice, the department posts a public copy (without employee names) on its WARN database and connects the employer with a local rapid response team that coordinates job search assistance, resume help, and retraining connections for affected workers.⁵

Penalties for Non-Compliance

An employer that fails to give the required 60 days’ notice owes each affected employee back pay for every day of the violation, calculated at whichever is higher: the employee’s average regular pay rate over the last three years, or the final regular pay rate. The employer also owes the cost of any benefits, including health insurance and medical expenses, the employee would have received during the violation period. That liability caps at 60 days, and it cannot exceed half the total number of days the employee worked for the company.¹³

On top of what employers owe workers, a separate civil penalty of up to $500 per day applies for failing to notify the local government official. That penalty disappears if the employer pays every affected worker what they’re owed within three weeks of ordering the layoff.¹³

Employers who voluntarily pay wages and benefits in place of the required notice period can offset those payments against WARN damages, but only if the payments are truly voluntary. Severance already owed under a contract, collective bargaining agreement, company policy, or state law doesn’t count as an offset.¹⁴

How Workers Enforce Their Rights

The U.S. Department of Labor does not investigate WARN Act complaints or bring enforcement actions on behalf of workers. Employees or their union must file a lawsuit in federal court.¹⁴ If the workers prevail, the court can award reasonable attorney’s fees on top of back pay and benefits.¹³

If you suspect your employer violated WARN by giving too little notice or none at all, document the date you were told about the layoff, your last day of work, and whether you received anything in writing. That timeline is the core of any WARN claim, and assembling it while events are fresh matters if the case goes to court.

Situations That Don’t Count as an Employment Loss

A few workforce changes look like WARN triggers but aren’t. When an employer offers a worker a transfer to another site and the worker accepts within 30 days of the offer or within 30 days after the closing or layoff, no employment loss has occurred, as long as the offer came before the layoff, there’s no more than a six-month break in employment, and the new role doesn’t amount to a constructive discharge. For companies consolidating operations between Washington locations, that can lower the headcount for WARN purposes.

Business sales work similarly. The seller is responsible for any closing or layoff up to and including the effective date of the sale, and the buyer is responsible for anything after.¹⁵ Employees of the seller are treated as automatically becoming employees of the buyer upon the sale, so the technical termination that happens at closing isn’t itself an employment loss unless the new terms are severe enough to be a constructive discharge.¹⁶

1
Washington Employment Security Department. Washington State Expands Federal WARN Act Requirements and Penalties
2
U.S. Department of Labor. Plant Closings and Layoffs
3
eCFR. 20 CFR 639.3 – Definitions
4
eCFR. 20 CFR 639.6 – Who Must Receive Notice
5
Washington Employment Security Department. WARN Requirements
6
Office of the Law Revision Counsel. 29 USC 2101 – Definitions
7
U.S. Department of Labor. WARN Advisor – Aggregation
8
Office of the Law Revision Counsel. 29 USC 2102 – Notice Required Before Plant Closings and Mass Layoffs
9
eCFR. 20 CFR 639.9 – When May Notice Be Given Less Than 60 Days in Advance
10
U.S. Department of Labor. WARN Act Natural Disaster Fact Sheet
11
eCFR. 20 CFR 639.7 – What Must the Notice Contain
12
eCFR. 20 CFR 639.8 – How Is Notice To Be Served
13
Office of the Law Revision Counsel. 29 USC 2104 – Liability
14
U.S. Department of Labor. WARN Advisor – Frequently Asked Questions
15
eCFR. 20 CFR 639.4 – Who Must Give Notice
16
U.S. Department of Labor. WARN Advisor – Sale of Business