×
Monday, October 19, 2026

Cal-WARN Regulation Information for Employers - The National Law Review

Under federal law, there is the Worker Adjustment and Retraining Notification Act (WARN) which sets forth certain requirements for businesses who are closing locations and/or proceeding with large-scale reductions in force. As is typical for the state, California has separate WARN regulations often referred to as Cal-WARN.

Here are some of the important differences between the federal and California WARN Acts:

Federal WARN Cal-WARN
Covered Employers

Applicable only to employers with 100 or more full-time employees* who must have been employed for at least 6 months of the 12 months preceding the date of required notice in order to be counted.

* Or 100 or more employees (including part-time employees) who in the aggregate work at least 4,000 hours per week (exclusive of overtime)

Applicable to a “covered establishment” that employs or has employed 75 or more full and part-time employees in the preceding 12 months. As under the federal WARN, employees must have been employed for at least 6 months of the 12 months preceding the date of required notice in order to be counted.

Plant Closing (Termination), Layoff, or Relocation Requiring Notice

Plant closings involving 50 or more employees (excluding part-time employees) during a 30-day period. Layoffs within a 30-day period involving 50 to 499 full-time employees constituting at least 33% of the full-time workforce at a single site of employment. Layoffs of 500 or more full-time employees are covered regardless of...



Read Full Story: https://www.natlawreview.com/article/california-has-its-own-flavor-warn-requi...