can now order free at-home coronavirus tests from the federal government online or by using a new hotline. >> people need a test immediately, we continue to encourage them to utilize one of the many testing options that are out there in addition to the website. 20,000 community-based testing sites nationwide, federal surge sites, dozens of which have opened in the last few weeks are online. >> reporter: let's talk more about the at-home test kits. the biden administration says she want to push out 1 billion kits to persons all across the cou, four per household. but there are people saying they've received error message when they try to go online and get them sent to their homes. they say they were getting error messages saying their properties weren't registered. just yesterday the biden administration says it is working directly with usps to try to address some of those