cnn's arlette saenz reports from the white house. >> reporter: the biden administration is taking the first steps in its mission to deliver half a billion covid-19 tests directly to americans' homes. as a covid-19 surge continues across the country. the biden administration announced they have signed two contracts with companies to procure these tests. one of those contracts is worth $51 million, going to a virginia-based company called gold belt security, to purchase existing tests like the company has. it's unclear how many tests that entails. a second contract is being given to revival health, a california-based company that would procure 13.3 million tests, though it's unclear how much that one would cost. now, the biden administration has said that they will issue more contracts in the weeks to come, but they really have provided only a few details about what this rollout would