With her party’s convention behind her, Hillary Clinton has started to officially plan for her White House transition, putting two longtime aides in charge of the effort.

John D. Podesta, Mrs. Clinton’s campaign chairman, will serve as the president and Minyon Moore, a senior adviser, the secretary of the Clinton-Kaine Transition Fund, a nonprofit group that will oversee the effort, according to paperwork filed on Wednesday to begin the formal process of planning a move to the White House.

In May, the Republican nominee, Donald J. Trump, put Gov. Chris Christie of New Jersey in charge of his transition planning.