"It goes back to Mr. Trump's goal of making sure people aren't using government to enrich themselves," Republican National Committee chief strategist and Trump transition team member Sean Spicer said on a conference call.

All appointees will have to sign a document that signifies they either are not a registered lobbyist or have terminated any lobbying ties, as well as a pledge to not go back within five years.

Spicer also said the transition will announce the first round of Trump "landing teams" on Thursday that will go to federal agencies to chart out the handover of power with current agency officials.

Trump representatives will head to the State Department, Justice Department, Defense Department and National Security Council as part of this first wave. Next week, the transition will announce economic and domestic policy teams. The Trump transition has been slowed by internal struggles, most notably the replacement of New Jersey Gov. Chris Christie by Pence at the top of the transition effort. Pence submitted paperwork to the White House late Tuesday certifying he’s leading the transition team, even though he took over last Friday. The four-day delay meant that Trump officials could not coordinate with their agency counterparts by law.

Trump's team must still submit the names of people serving on the landing teams as well as code of conduct forms certifying they are free of conflicts of interest, White House spokesperson Brandi Hoffine said Tuesday. Once that step is completed, the transition work can begin in earnest.

Spicer and Trump adviser Jason Miller added that the president-elect continues to meet with potential appointees and other advisers as he shapes his Cabinet.

And on Thursday, he plans to meet with Govs. Rick Scott (Fla.) and Nikki Haley (S.C.), as well as former secretary of State Henry Kissinger, Texas Rep. Jeb Hensarling, FedEx CEO Fred Smith, Ret. Gen. Jack Keane, National Security Agency head Mike Rogers and former Ohio secretary of State Ken Blackwell.