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Mini WARN laws by state and municipality

Compare mini WARN laws by state and municipality, including notice requirements, mass layoff thresholds, employer coverage and penalties.

by the Brightmine Editorial Team

The federal Worker Adjustment and Retraining Notification (WARN) Act requires covered employers that are planning a plant closing or mass layoff to provide advance written notice to employees and other entities. The Act also imposes penalties on employers that fail to provide the required notice.

The following chart summarizes state and local mini-WARN Act requirements for mass layoffs, plant closings and relocations relating to employer coverage, triggering events, written notice and penalties. It also includes any exceptions to these requirements.

References on the chart to FTEs means “full-time employees” and to PTEs means “part-time employees.” Cells marked with “N/A” signify either that there is no state or local law or that the particular issue in question does not apply under that state’s or locality’s law.

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Latest updates

Updated to reflect the Nebraska WARN Act, effective July 18, 2026.

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The Brightmine Editorial Team

Our in-house team of HR experts carefully monitors and updates the Brightmine HR & Compliance Center, the most comprehensive library of employment law and HR resources. This team has an unrivaled wealth of subject matter expertise, with an average of 15 years’ experience. They also bring invaluable, diverse career experiences to the table—the team includes seasoned employment law attorneys, former in-house counsel, SHRM certified professionals and career employment law editors.

In addition to managing the HR & Compliance Center, the Editorial Team supports the content across the Brightmine product portfolio. The Team also supports Marketing Resource Center with breaking HR news, Commentary and Insights, and expert review of key compliance resources, such as our free charts.

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