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Those rules state that appointees can’t work on specific matters involving former clients and employers for two years unless they receive a waiver. That’s a problem for former journalists who need to talk to the media organizations where they worked.

Ms. Nolt received a waiver from the Education Department so she could communicate with The Associated Press.

Similar waivers have been granted to Paul Franz, former national security editor at The Washington Post who took a job as assistant secretary for public affairs at the State Department; and Glen Johnson, former online politics editor at The Boston Globe, who went from covering Sen. John F. Kerry to working for him as a senior adviser at the State Department.