Over the past year, the Pentagon has awarded more than $34 million to install luxurious interiors in two of President Trump’s back-up Air Force One aircraft, which are also often used by the first lady and cabinet secretaries, according to U.S. Defense Department documents.

The Boeing 757s require “an appearance more commensurate with [the] presidential section of the VC-25A,” the Pentagon said in a contract announcement this week. VC-25A is the military designation for the two Boeing 747s that serve as Air Force One.

On Tuesday, the Air Force gave Boeing a $16 million contract to start installing “upgraded interior elements” on one of the military’s four 757s, which it calls C-32s. Last year, the service spent nearly $18 million installing a new interior on a different C-32. This week’s contract was first reported by the Washington Examiner.

The Aug. 14 announcement says the contract covers “upgraded interior elements; refurbished interior elements; painting and cleaning; replacing double-seat configuration with triple-seat configuration, aft of Door 3.”

The upgrades also include new carpets and new seats in the VIP cabin, according to two sources with knowledge of the project.