Trump Team Signs Transition Agreement but Shuns F.B.I. Clearances

President-elect Donald J. Trump’s team has signed a transition agreement with the White House that will allow them to begin formal briefings with outgoing staff members in agencies across the government, Mr. Trump’s chief of staff said on Tuesday evening.

But Mr. Trump’s team has so far refused to sign an agreement with the Justice Department to allow the F.B.I. to do security clearances for transition members. Without that, Biden administration officials will be unable to share classified information with many of Mr. Trump’s transition aides.

The Trump team is also refusing to sign an agreement with the General Services Administration that usually provides secure office space, government email accounts and other support. White House officials said that would make sharing information with Mr. Trump’s officials more difficult over the next two months.

In recent decades, incoming presidents have signed agreements with their predecessors to smooth the transition of power. The goal is to ensure that the new administration is ready to take over on Jan. 20 and that its officials adhere to basic ethical standards.

Susie Wiles, who will serve as Mr. Trump’s top staff member in the White House, said in a statement that the president-elect had directed that his team sign the traditional memorandum of understanding so that the process of information sharing between the outgoing and incoming administrations could begin.

“This engagement allows our intended cabinet nominees to begin critical preparations, including the deployment of landing teams to every department and agency, and complete the orderly transition of power,” Ms. Wiles said in the statement.