IANAL, but having gone through this a few times, a few things to be aware of with the WARN Act:
1. While the WARN Act is a federal provision, some states have their own versions of it that are more demanding or that change the definition of what qualifies as a mass layoff. Look up WARN Act provisions for your state if you're unsure.
2. The WARN Act stipulates _either_ 60 days notice _or_ 60 days severance+healthcare payments in addition to the legally mandated payouts+healthcare.
3. The Warn Act does not cover equity, though I have heard of some folks negotiating better severance agreements.
Anything beyond WARN is not something your state will entitle you to during a mass layoff. WARN provisions cannot be waived, but your employer may incentives or pressure you to waive rights (to sue for wrongful termination, harassment, etc). You don't need to sign anything for WARN, so speak to a labor attorney if anyone tells you otherwise.
EDIT: One thing I learned today is that there are exceptions to a company needing to announce a layoff as per WARN. Page 7 of the DOL WARN handbook[1] notes:
> 1. A "faltering company" is not required to give notice of a layoff or plant
closing when, before the plant closing, it is actively seeking capital or
business, which if obtained would avoid or postpone the layoff or closure, and if it reasonably believes that advance notice would hurt its ability to find the capital or business it needs to continue operating;
> 2. A business is not required to give a full 60-day’s notice if it could not reasonably foresee business circumstances that led to a layoff or closing at the time that the 60-day notice would have been required, (e.g., a business circumstance that is caused by some sudden, dramatic, and unexpected action or conditions outside the employer’s control like the unexpected cancellation of a major order); or
> 3. A business is not required to give notice if a layoff or plant closing is the direct result of a natural disaster (i.e., hurricane, flood, earthquake, tornado, storm, drought, or similar effect of nature).
1. https://www.dol.gov/sites/dolgov/files/ETA/Layoff/pdfs/Worke...