The Mask Mandate In Several Tennessee Counties That Was Set To End Today, Has Been Extended. Carter, Washington And Johnson Counties Have All Extended Their Mandates Until August 29th. Unicoi County Mayor Garland Everly Says He Finalizing An Executive Order To Extend His Counties Mandate, And Sullivan County Mayor Richard Venable Says Although His Counties Mandate Does Not End Until August 12th, He Also Anticipates An Extension Through August 29th.