Plant closing and notice period questions, accounts payable clerk here

I received a formal notice about a mass layoff at my workplace. It has been weighing on me all week. I do not know if I should start looking now or wait for severance news. What did the workforce office offer?

Write down key dates and keep copies of the notice. Mine helped when a question came up later.

I stayed for the retention bonus and looked for work on the side. It cushioned the gap.