TRICARE Authorizes Temporary Prescription Refill Waivers for Ketchikan Gateway Borough, Alaska, due to Heavy Rain and Landslides Network_TEAM August 30, 2024 FALLS CHURCH, Virginia – The Defense Health Agency announced that TRICARE beneficiaries in Ketchikan Gateway Borough, Alaska, may receive emergency prescription refills now through Sept. 6, 2024, due to heavy rain and landslides.