The United States Postal Service said it has delivered more than 270 million COVID-19 tests to American households as part of President Biden’s plan to distribute free at-home tests to Americans for free.

 The Postal Service reported over 68 million test kit packages — with four individual tests per kit — have been shipped to American households across all states, tribes and territories.

On average, it takes just 1.2 days for the Postal Service to deliver a test kit package once it has been received from the manufacturer, kitted, and entered into the mailstream. On Tuesday, Feb. 22, the Postal Service delivered more than 6 million COVID-19 test kit packages — the highest single-day volume delivered since shipping began at the end of January.

“There are few assignments the Postal Service has received that better exemplify our public service mission than the request of the Biden Administration to deliver America’s COVID-19 test kits,” said Postmaster General and Chief Executive Officer Louis DeJoy. “It is a major point of pride throughout our organization to have met our own performance expectations and those of the public. We are grateful for the strong collaboration of our partners across the federal government, including the White House, the Department of Health and Human Services and the Department of Defense. Thank you to our Postal Service employees, our union and management association partners for so effectively and efficiently delivering such strong performance across the board.”