What Is the WARN Act?

The WARN Act (Worker Adjustment and Retraining Notification Act) is a federal law requiring employers with 100 or more employees to provide at least 60 days advance written notice before a mass layoff or plant closing.

Definition

Enacted in 1988, the WARN Act is designed to give workers, their families, and communities time to prepare for significant job losses. It applies when a covered employer conducts a "plant closing" (affecting 50 or more workers) or a "mass layoff" (affecting 500 or more workers, or 50–499 workers if they represent at least 33% of the employer's workforce).

Notice must be given to affected employees, their union representative (if any), and the appropriate state and local government agencies. The 60-day period can be given as active notice (you continue working and being paid) or employers sometimes provide pay in lieu of notice — a lump sum equal to 60 days of pay — rather than keeping workers on the payroll.

Several states have enacted "mini-WARN" statutes with lower thresholds. California's WARN Act covers employers with 75 or more employees; New York's covers 50 or more. If you work in a state with its own WARN law, you may have broader protections than the federal baseline.

How It Affects Your Financial Runway

A 60-day WARN Act notice period — whether you work through it or receive pay in lieu — adds up to two months of pay directly to your financial position before your runway clock even starts. If your employer provides pay-in-lieu-of-notice rather than a traditional notice period, that payment functions identically to severance for runway calculation purposes.

If your employer violates the WARN Act by laying you off without proper notice, you may be entitled to up to 60 days of back pay. This is worth pursuing — it can materially extend your runway.

Worked Example

Salary: $72,000/year = $6,000/month. Employer provides 60 days pay-in-lieu-of-notice. Pay received: $6,000 × 2 = $12,000 (treated the same as severance in runway calculation).

Savings $18,000 + WARN pay $12,000 = $30,000 total ÷ $3,800 burn = 7.9 months

Without the WARN pay: $18,000 ÷ $3,800 = 4.7 months — the WARN Act added 3.2 months.

Frequently Asked Questions

Does the WARN Act apply to my employer?

The federal WARN Act covers employers with 100+ full-time employees and is triggered by plant closings affecting 50+ workers, or mass layoffs affecting 500+ workers (or 50–499 if ≥33% of workforce). Many states have mini-WARN laws with lower thresholds — California (75+), New York (50+), and others. Check your state's labor department for applicable rules.

What happens if my employer violates the WARN Act?

Employers who violate the WARN Act can be liable for back pay and benefits for up to 60 days. You can file suit in federal district court. Consult an employment attorney promptly — statutes of limitations apply and this pay can meaningfully extend your runway.