The first order he signed was a federal mask mandate, which would require the face shield on federal property and during interstate travel. His other two executive orders involved revoking Donald Trump’s Muslim travel ban and rejoining the Paris Climate Accords.
Vice President Kamala Harris also got straight to work on Wednesday after she was sworn in. She went to the Senate for the swearing in of three Democratic senators.
This all comes after a day filled with inauguration-related events, including Mr Biden and Ms Harris traveling to Arlington National Cemetery to lay a wreath at the Tomb of the Unknown Soldier. Former Presidents Bill Clinton, George W Bush, and Barack Obama were all in attendance for the events.
Mr Trump, in comparison, broke precedent and left the White House for Mar-a-Lago in Florida without attending the inauguration. The one tradition Mr Trump did participate in was writing a letter to his successor, which was left in a drawer of the Resolute Desk. Mr Biden did not reveal the contents of the letter, but he did say it was "very generous”.