WARN Act Notices by State

The federal Worker Adjustment and Retraining Notification (WARN) Act requires larger employers to file advance notice of mass layoffs and plant closures with their state. These are official public filings — often more precise than press reports — including effective dates, locations, and headcounts.

Tracking 12,809 filings affecting 1,071,699 workers across 4 states.

WARN Act filings by state. Shaded = data available (darker = more workers affected). Coverage is expanding.

State	WARN filings	Workers affected
New York	8,672	743,527
Texas	2,320	213,282
California	1,432	77,251
Oregon	385	37,639

Source: state WARN portals (open data). More states are being added. See methodology.