Prince William County issued the following announcement on Jan. 29
Prince William County government is distributing free, at-home COVID-19 test kits at 11 of its open @princewilliampubliclibraries branches starting on Monday, January 31 – Wednesday, February 2 from 10:00 a.m. – 12:00 p.m., while supplies last. Visit pwcva.gov/covid-19-test-kits for more information and daily updates.
Starting Monday, January 31, the kits will be available at all Prince William Public Libraries (excluding Bull Run Library) Monday – Wednesday from 10:00 a.m. – 12:00 p.m., while supplies last. Dale City Library will have kits available only Monday, January 31.
Central, Chinn Park, Haymarket Gainesville, Manassas City, Montclair, and Potomac Libraries will also be distributing kits Monday, January 31 – Wednesday, February 2 from 5:00 – 7:00 p.m.
Original source can be found here.