WASHINGTON _ President-elect Obama, who said lobbyists would not run his White House, signaled Tuesday that lobbyists could serve in his transition so long as their activities do not involve areas of policy they have tried to influence in the past year.

John Podesta, a top transition aide to Obama, said federal lobbyists will be prohibited from any lobbying while they are at work on the transition.

The transition office said in a statement, "if someone has lobbied in the last 12 months, they are prohibited from working in the fields of policy on which they lobbied."

Podesta said federal lobbyists may not contribute financially to the transition. He called the guidelines the toughest ever imposed by a presidential transition. But they seem to give lobbyists somewhat more leeway than Obama suggested they would have when he campaigned for the presidency.

In a speech last November in Spartanburg, S.C., Obama said: "I have done more to take on lobbyists than any other candidate in this race ... I don't take a dime of their money, and when I am president, they won't find a job in my White House."

At other times, he said lobbyists would not "run" his White House.

Obama's campaign Web site said: "No political appointees in an Obama-Biden administration will be permitted to work on regulations or contracts directly and substantially related to their prior employer for two years. And no political appointee will be able to lobby the executive branch after leaving government service during the remainder of the administration."

Copyright 2008 The Associated Press.