Cal-WARN Act Compliance During Mergers & Acquisitions: A Guide for California Employers

Mergers and acquisitions (M&A) are designed to create corporate efficiency, which frequently means eliminating redundant jobs. When a buyer acquires a California company, they often consolidate operations, shut down facilities, or relocate headquarters. However, in California, you cannot simply hand out pink slips on the day the deal closes. The California Worker Adjustment and Retraining Notification (Cal-WARN) Act provides massive protections for workers, imposing strict notice requirements on employers conducting mass layoffs or plant closures.

Failing to understand the intersection of M&A and Cal-WARN can leave the buyer inheriting millions of dollars in unexpected liability. You need precise legal guidance to structure the transition. We highly encourage you to browse our US Lawyers directory to find a California employment attorney who specializes in corporate transactions and Cal-WARN compliance to protect your deal.

What Triggers the Cal-WARN Act During an M&A?

Federal WARN Act rules typically trigger when an employer has 100 or more full-time employees. California is far stricter. Under Cal. Lab. Code § 1400, the Cal-WARN Act applies to any "covered establishment"-defined as a single industrial or commercial facility that employs, or has employed within the preceding 12 months, 75 or more persons (including part-time and full-time workers). The law is triggered by three distinct events: a mass layoff (50 or more employees laid off within a 30-day period), a termination or plant closure (cessation or substantial cessation of operations affecting any number of employees), or a relocation (moving operations 100 or more miles away affecting any number of employees). Here is how this impacts specific business micro-niches during an M&A.

Manufacturing Plants (Plant Closures)

If a private equity firm buys a manufacturing company in Oakland and decides to shut down one of the target's operating facilities to consolidate production in another state, this constitutes a "termination" (plant closure) under Cal. Lab. Code § 1400(f). If that facility qualifies as a covered establishment (75 or more employees in the prior 12 months), 60-day Cal-WARN notice is mandatory regardless of how many employees lose their jobs-even if fewer than 50 workers are affected. The buyer or seller (depending on when the closure occurs) must issue formal 60-day notice before operations cease.

Large Retail Chains (Mass Layoffs)

When retail chains merge, they often eliminate redundant staff across store locations. However, California law evaluates Cal-WARN obligations on a location-by-location basis. Under Cal. Lab. Code § 1400(a) and judicial precedent such as Lugo-Rodriguez v. My World Enterprises, Inc., No. BC637677 (Cal. Super. Ct. 2018), employees across separate, geographically distinct facilities cannot be aggregated. A retail location must independently employ 75 or more workers to qualify as a covered establishment, and a "mass layoff" requires separating 50 or more employees from that specific single site within a 30-day period. Legislative attempts to aggregate multi-site workforces across California (such as Assembly Bill 1356) were vetoed, preserving the strict single-facility rule.

Corporate Headquarters (Relocations)

Sometimes, an M&A deal does not result in immediate firings, but rather a corporate relocation. If a San Francisco corporate headquarters with 75 or more employees is acquired and relocated to Austin, Texas, this constitutes a "relocation" under Cal. Lab. Code § 1400(e). Under Cal-WARN, relocating a covered establishment 100 miles or more away requires 60 days' advance notice to all affected employees, regardless of the number of individuals transferred, even if employees are offered positions at the new out-of-state facility.

Notice Periods and Successor Liability

The timing of the layoff dictates who is legally responsible. If the seller terminates the employees prior to the closing date of the merger, the seller is responsible for issuing the 60-day notice. If the buyer terminates the employees after the closing date, the buyer is liable.

However, under California's successor liability laws, if a seller violates Cal-WARN just before the sale, the buyer can often be held financially responsible for the seller's unpaid wages and penalties. Therefore, M&A contracts must explicitly state which party is responsible for issuing notices and include heavy indemnification clauses to protect the buyer from the seller's labor violations.

Step-by-Step Cal-WARN Compliance Checklist

Proper compliance requires precise timing and coordination with state agencies. Here is how your legal team will handle the process.

Step 1: Conduct a Workforce Audit

During M&A due diligence, your attorney will review the target company's employee census to determine if the 75-employee threshold is met at any single facility and exactly how many redundancies are planned post-closing.

Step 2: Negotiate Responsibility in the Purchase Agreement

The buyer and seller must draft specific covenants into the Asset Purchase Agreement detailing who will issue the notices and who will pay the salaries during the 60-day waiting period.

Step 3: Draft and Issue the Notices

Exactly 60 days before the planned terminations, your attorney will distribute formal written notice to all affected employees alongside mandatory state materials, such as Form DE 2320, California, Employment Development Department, For Your Benefit: California's Programs for the Unemployed. The notice must contain specific information regarding severance, bumping rights, and the permanence of the layoff.

Step 4: Notify State and Local Officials

Simultaneously, under Cal. Lab. Code § 1401, you must send official written notice to the Employment Development Department, Sacramento (EDD), the local Workforce Development Board, and the chief elected officials of the city and county where the layoff is happening.

How Much Does M&A Employment Counsel Cost?

Handling Cal-WARN compliance requires specialized legal knowledge. Corporate employment attorneys in California typically charge between $450 and $850 per hour. Drafting the required notices, calculating liability, and interfacing with the state EDD will generally cost an employer between $10,000 and $25,000 in legal fees. However, failing to comply can cost millions in back pay (up to 60 days of wages and benefits per employee) plus a $500 per day civil penalty under Cal. Lab. Code § 1403.

How Long Do You Have to Give Notice?

You must provide the notice at least 60 full calendar days before the effective date of the first employee termination. In fast-moving M&A deals, buyers sometimes choose to immediately terminate the employees and pay them 60 days of wages and benefits in a lump sum (known as "pay in lieu of notice") to clear the building immediately, though your attorney must carefully structure this to ensure it fully satisfies Cal-WARN requirements.