Residential households in the U.S. can order one set of #4 free at-home tests from USPS.com. Here's what you need to know about your order:

• Limit of one order per residential address
• One order includes #4 individual rapid antigen COVID-19 tests (COVID.gov/tests has more details about at-home tests, including extended shelf life and updated expiration dates)
• Orders will ship free starting the week of December 19, 2022