Federal WARN Act (1988)
Congress passed the Worker Adjustment and Retraining Notification Act to require large employers to give 60 days' notice before plant closings and mass layoffs. It followed a decade of abrupt factory shutdowns in the Midwest and Northeast, where workers learned of closures days before losing their jobs.
Employers with 100 or more workers had to give written notice, or pay back pay and benefits for the missed period.
The 60-day notice became the baseline that states could exceed; several, including California, set lower employee thresholds and added content requirements.
This is why an 88-person layoff in Los Angeles is public knowledge 60 days before it happens, instead of being announced the week it occurs.
