Joe Biden intends to mail out a half-billion COVID-19 tests, starting in January.

The Biden administration announced early Tuesday that it plans to send 500 million test kits to homes as part of an effort to fight the spread of the omicron variant.

"Today, the President is announcing his Administration will purchase a half-billion at-home, rapid tests this winter to be distributed for free to Americans who want them, with the initial delivery starting in January 2022," said the White House in a press statement.

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The White House also announced that it would add additional federal test sites across the United States, beginning with New York. Biden also pledged to use the Defense Production Act to produce the necessary number of COVID-19 tests for those in need.

These decisions appear to reverse previous Biden administration positions on COVID-19 testing. On Dec. 6, White House press secretary Jen Psaki dismissed the notion of mailing test kits to nearly every home.

The Biden administration also announced it would add more vaccination clinics on top of the 90,000 that have already been stood up in recent months, as well as deploy "hundreds of federal vaccinators across 12 states, Tribes and territories."

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The White House says it will deploy more than 1,000 military service members to hospitals to help with growing case counts, in addition to the deployment of six emergency response teams to Michigan, Indiana, Wisconsin, Arizona, New Hampshire, and Vermont.

On Sunday, Dr. Anthony Fauci told CNN's Jake Tapper that the U.S. needed to improve its COVID-19 testing procedures.