California's mini-WARN law — Cal-WARN, Labor Code sections 1400 through 1408 — generally requires 60 days of advance written notice before a mass layoff, relocation, or termination at a covered establishment, and it reaches meaningfully further than the federal WARN Act. The threshold is a facility that employs, or employed within the preceding 12 months, 75 or more persons (federal WARN starts at 100 employees company-wide). A mass layoff is 50 or more employees in a 30-day period at that establishment, with no requirement that they make up a third of the workforce — a percentage test that shields many mid-size federal layoffs. California also covers relocations of 100 miles or more and recognizes almost none of the federal exceptions. Where an employer skipped notice, the statute generally provides up to 60 days of back pay and benefits. Whether Cal-WARN applies to your layoff depends on the specifics, and these rules can change.
How does Cal-WARN differ from federal WARN?
Cal-WARN treats the federal statute as a floor and raises it in several ways at once. Coverage starts lower: a covered establishment is a facility with 75 or more persons employed currently or within the preceding 12 months, rather than the federal 100-employee company-wide test, and part-time workers count toward that number. The triggering test is broader too, because California drops the federal one-third rule and counts any layoff of 50 or more employees at a covered establishment in a 30-day period. Relocations of 100 miles or more are a triggering event with no federal equivalent, and California's "termination" concept covers the cessation or substantial cessation of operations without the federal 50-employee minimum for closings. The exceptions are narrower as well, since California generally recognizes no unforeseeable-business-circumstances carve-out. Whether Cal-WARN reaches your layoff depends on the specifics. Where California generally goes further:
- Lower employer threshold. A covered establishment is a facility with 75 or more persons employed currently or within the preceding 12 months — versus the federal 100-employee, company-wide test.
- No one-third rule. Federal WARN treats a layoff of 50 to 499 workers as a "mass layoff" only if it hits at least 33% of the site's full-time workforce. Cal-WARN counts any layoff of 50 or more employees at a covered establishment in a 30-day period — so a 60-person layoff at a 500-person California facility can trigger Cal-WARN while escaping federal WARN entirely.
- Relocations are covered. Moving all or substantially all operations 100 miles or more away is a triggering event under Labor Code section 1400 — federal WARN has no relocation trigger.
- "Termination" is broader than "plant closing." Cal-WARN covers the cessation or substantial cessation of operations at the establishment, without the federal 50-employee minimum for closings.
- Far narrower exceptions. California generally recognizes no "unforeseeable business circumstances" exception — the carve-out employers most often invoke under federal WARN. See below.
- Part-time workers count. The employee counts are not limited to full-time employees, unlike the federal thresholds.
Which employers and employees does Cal-WARN cover?
Cal-WARN covers employers by facility and employees by tenure, and both tests are worth reading carefully because neither matches the federal one. On the employer side, coverage reaches any person who directly or indirectly owns and operates a covered establishment — an industrial or commercial facility, or part of one, that employs or has employed within the preceding 12 months 75 or more persons. That 12-month lookback matters in practice, because shrinking a facility below 75 shortly before a layoff generally does not escape coverage. On the employee side, the statute generally protects a person employed for at least six months of the 12 months preceding the date notice is required. Workers hired more recently are generally not entitled to notice themselves, though they still count toward the establishment's headcount. Whether you fall inside either test depends on the facts. How the two tests work:
- Employers: any person who directly or indirectly owns and operates a covered establishment — an industrial or commercial facility (or part of one) that employs, or has employed within the preceding 12 months, 75 or more persons. The 12-month lookback matters: shrinking the facility below 75 shortly before a layoff generally does not escape coverage.
- Employees: a person employed for at least 6 months of the 12 months preceding the date notice is required. Workers hired more recently are generally not entitled to notice, though they still count toward the establishment's headcount.
What does the 60-day notice require?
Under Labor Code section 1401, notice generally must go out 60 days before the order takes effect, and it has to reach four sets of recipients rather than only the workforce: the affected employees, the Employment Development Department, the local workforce investment board, and the chief elected official of each city and county where the event occurs. The content of the notice generally must include the elements required by the federal WARN regulations, so the state law borrows the federal template rather than writing its own. As under federal law, a vague all-hands message about upcoming headcount changes is generally not treated as notice. One practical consequence of the filing requirement is that the EDD publishes the notices it receives, which lets many people verify whether and when one was actually filed rather than relying on what they were told. Whether a particular notice was adequate depends on the facts.
What exceptions does California recognize?
California recognizes far fewer exceptions than federal law, and the ones it does recognize are deliberately thin. The first is physical calamity or act of war: notice is generally not required where the event is necessitated by one of those, a materially narrower carve-out than the federal unforeseeable-business-circumstances and natural-disaster exceptions taken together. The second is a faltering-company provision under section 1402.5, which lets an employer seeking capital or business apply for relief from the notice requirement — but the statute states expressly that it does not apply to notice of a mass layoff, so it is generally limited to relocations and terminations, and it requires a determination rather than the employer's own judgment. The practical consequence is that a California employer pointing to sudden business conditions after a short-notice layoff is generally relying on an exception the state statute does not offer. The two exceptions:
- Physical calamity or act of war. Notice is generally not required where the event is necessitated by one of these — a materially narrower carve-out than the federal "unforeseeable business circumstances" and "natural disaster" exceptions.
- Faltering company — but not for layoffs. Section 1402.5 lets an employer seeking capital or business apply for relief from the notice requirement, and the statute states expressly that this "does not apply to notice of a mass layoff." It is generally limited to relocations and terminations, and it requires a determination — not just the employer's own judgment.
The practical consequence: a California employer that laid off 50 or more people with short notice and points to "sudden business conditions" is generally relying on an exception the state statute does not offer, even if federal WARN might excuse it. This gap is where many Cal-WARN claims live.
What can you recover for a violation?
Where an employer failed to give the required notice, Cal-WARN generally provides back pay for each day of the violation, up to 60 days — or half the days of your employment, if that is shorter — calculated at whichever is higher of your average regular rate over the last three years or your final rate. The value of lost benefits comes with it, including medical expenses a plan would have covered during the period. There is also a civil penalty of up to $500 per day of violation, which an employer can generally avoid by paying affected workers what they are owed within three weeks of ordering the layoff, and a prevailing plaintiff can generally recover reasonable attorney's fees under section 1404. Severance offered in exchange for a release does not erase a violation, though voluntary payments may offset damages. What the statute generally provides:
- Back pay for each day of violation, up to 60 days (or half the days of your employment, if shorter), calculated at your average regular rate over the last 3 years or your final rate — whichever is higher
- The value of lost benefits, including medical expenses that a plan would have covered during the period
- A civil penalty of up to $500 per day of violation, which the employer can generally avoid by paying affected workers what they are owed within 3 weeks of ordering the layoff
- Reasonable attorney's fees for a prevailing plaintiff under section 1404
Cal-WARN claims are commonly brought as class actions, often alongside federal WARN claims when both statutes were triggered. Severance offered in exchange for a release does not erase a Cal-WARN violation, though voluntary payments may offset damages — how that nets out depends on the facts.
What should you document?
The records that matter most for a Cal-WARN question are the ones that fix dates and headcounts, because both statutory tests turn on those. Any notice you received, its date, and how it was delivered establish whether the 60-day period was met, and the date you learned of the layoff alongside your last day of work is what the count runs between. Headcount figures matter twice over: the approximate number of people at your facility now and across the past 12 months speaks to whether the establishment was covered at all, while the number let go at your site within the same 30-day window speaks to whether the layoff was large enough to trigger the statute. Whether operations moved, and roughly how far, covers the relocation trigger. Your hire date and pay records complete it. What people commonly gather:
- Any WARN notice you received, its date, and how it was delivered
- The date you learned of the layoff and your last day of work
- Approximate headcount at your facility now and over the past 12 months
- How many people were let go at your site within the same 30-day window
- Whether operations moved to another location, and roughly how far
- Your hire date (the 6-months-of-12 employee test) and pay records
When should you talk to a lawyer?
Many people get a Cal-WARN claim evaluated when the gap between notice and separation was under 60 days, when 50 or more coworkers at a California facility were cut in a rolling series of waves, when the employer cited sudden business conditions as the reason notice was short, or when a facility's work moved out of the area. Because notice filings are public through the EDD and the affected group is by definition large, these cases tend to surface quickly and are frequently handled on contingency, so cost is often less of an obstacle than people expect. Cal-WARN claims are also commonly brought alongside federal WARN claims where both statutes were triggered, so a single review often covers both. Whether your layoff crossed the statutory lines depends on facts a short consultation can usually sort out, and these rules can change.
Official sources
- California Legislative Information — Labor Code sections 1400-1408 (Cal-WARN)
- California Employment Development Department — Worker Adjustment and Retraining Notification (WARN) Information for Employers
- California Department of Industrial Relations — Cal-WARN Act
- U.S. Department of Labor — WARN Act Compliance Assistance (federal)