How much notice does the WARN Act require before a plant closing under 20 CFR 639?

According to 20 CFR 639.2, "WARN requires employers who are planning a plant closing or a mass layoff to give affected employees at least 60 days' notice of such an employment action." Additionally, 20 CFR 639.5 states that "notice must be given at least 60 calendar days prior to any planned plant closing or mass layoff, as defined in these regulations."

This is compliance information, not legal advice — verify against the official eCFR and the issuing agency.