Commissary closures happen — landlord disputes, health code violations at the commissary itself, fires, sale of the building. If you operate without a permitted commissary on file, you operate illegally. Pre-plan — identify a backup during your initial search, visit it, get a tentative rate, and confirm capacity for an emergency move-in. Some operators pay a small monthly retainer at a second location for backup storage and dump access. When the primary closes, most jurisdictions require a permit amendment with the new commissary letter within 10-30 days. Until acknowledgment, technically you should not operate. Some health departments will issue a short grace period if signed paperwork is in motion — call your inspector directly and document. Move perishables the day of closure.