COVIDtests.gov is a website through which American residents, as well as those receiving US diplomatic and military mail, can order free COVID-19 rapid antigen tests from the US government. It was announced that the site would open for orders on January 19, 2022, but instead opened a day early, on January 18. The program was suspended in September 2022 to preserve the remaining supply of tests in preparation for a potential winter COVID-19 wave as the Biden administration worked to secure greater COVID-19 funding from Congress; the program was relaunched December 15, 2022. The program was again suspended on May 11, 2023 when the Covid-19 public health emergency was ended in the United States; it was relaunched September 25, 2023 amidst a late summer rise in Covid cases.