The Biden administration is expanding access to at-home Covid-19 tests. Beginning this month, the government will mail up to 4 rapid antigen test kits to all US residential addresses. The tests are free and will ship in 7-12 days, To sign up, visit covidtests.gov and fill out the online form. If you need a test more quickly, contact your health provider, visit Maine's Covid info page, or call the hotline at 1-888-445-4111. The hotline can also help you find clinics offering vaccines and booster shots.