hangar nearby. Elon Musk, CEO of SpaceX, stated that he wanted to shift most of SpaceX's NASA launches to LC-39A, including commercial cargo and crew missions to the International Space Station. SpaceX utilizes the former Fixed Service Structure (FSS) of the Pad 39A launch towers and intends to extend it above its former height. It did not need the Rotating Service Structure (RSS) and removed it beginning in February 2016. NASA removed the Orbiter Servicing Arm — with intent to use the space later to build a museum — and the white room by which astronauts entered the Space Shuttle. SpaceX indicated in late 2014 that additional levels to the FSS would not be added in the near term. SpaceX plans to eventually add at least two additional levels to the FSS, to provide crew access for the Dragon 2 launches. SpaceX assembles its launch vehicles horizontally in a hangar near the pad, and transports them horizontally to the pad before erecting the vehicle to vertical for the launch. For military missions from Pad 39A, payloads will be vertically integrated, as that is required per launch contract with the USAF. Pad 39A will be used to host launches of astronauts on the crewed-version of the Dragon space capsule in a public–private partnership with NASA. , the NASA plan called for the first NASA crewed missions in 2017. SpaceX intends to add "a crew gantry access arm and white room to allow for crew and cargo ingress to the vehicle. The existing Space Shuttle evacuation slide-wire basket system will also be re-purposed to provide a safe emergency egress for the Dragon crew in the event of an emergency on the pad that does not necessitate using the Crew Dragon's launch abort system". In August 2018, SpaceX's Crew Access Arm (CAA) was installed on a new level, which was built at the necessary height to enter the Crew Dragon spacecraft atop a Falcon 9 rocket. It very closely resembles jetways that are frequently found at airports. In September 2018, the refurbished Space Shuttle Emergency Egress System was raised to this new level. In August 2019, SpaceX submitted an Environmental Assessment for Starship launch system at Kennedy Space Center. This document included plans for the construction of additional structures at LC-39A to support Starship launches, including a dedicated pad, liquid methane tanks, and a Landing Zone. These are separate from the existing structures