With his plans to stop the Trump administration’s elimination of regulations, put back in place Obama-era rules sidelined by the GOP, and pile on his own environmental restrictions, President-elect Joe Biden is set to become the nation’s regulator in chief.

When he arrives in the Oval Office, Biden is expected to issue a freeze on all Trump regulations working through the system. That could trap several eleventh-hour rules and deregulatory actions, including several from the Environmental Protection Agency.