The Central Epidemic Command Center (CECC) announced that duty free stores at five designated airports in Taiwan will begin to sell requisitioned face masks to inbound travelers on March 21. Inbound travelers can purchase face masks at duty free shops in certain airports upon their arrival by presenting their boarding passes, passports or proof of ticket purchase to the clerk. A unit of face masks costs NT$50, or US$2, and each person is allowed to buy only one set (three adult face masks or five child-size face masks). The purchase record of Taiwanese nationals or Resident Certificate holders will be consolidated as part of the calculation of the purchase quota under the name-based system for face masks. The duty free shops at designated airports are contracted by the government to sell requisitioned materials; thus, the charge of face masks will be rendered to the national treasury.