Kelly’s new responsibility was laid out in a memo Friday night by White House budget director Mick Mulvaney. The new protocol exempts those required to fly on government planes for security reasons, like the secretary of defense and secretary of state.

“We are public servants,” Mulvaney wrote in the memo. “Every penny we spend comes from the taxpayer. We thus owe it to the taxpayer to work as hard managing that money wisely as the taxpayer must do to earn it in the first place.”