25 C.F.R. § 559.5
Must a tribe notify the Chair if a facility license is terminated or expires or if a gaming place, facility, or location closes or reopens?
A tribe must notify the Chair within 30 days if a facility license is terminated or expires or if a gaming place, facility, or location closes or reopens. A tribe need not provide a notification of seasonal closures or temporary closures with a duration of less than 180 days.