US WARN layoff notices › Employers › C › Carbon
Official state WARN filings by Carbon since 1988, normalized from state labor department sources. Latest notice: 2025-09-17.
| Notice date | State | Location | Employees | Effective date | Type |
|---|---|---|---|---|---|
| 2025-09-17 | California | San Mateo County | 78 | 2025-11-17 | Layoff Permanent |
| 2024-01-18 | California | San Mateo County | 60 | 2024-02-15 | Layoff Permanent |
Source: state WARN Act disclosures, normalized in the free US WARN notices dataset (CSV/JSON, no login, no delay, notices 1988+). WARN notices are advance notifications of plant closings and mass layoffs; actual layoff counts and dates can change after filing.
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