J.P. Donovan Construction, based in Rockledge, Florida, provides construction services for clients in California and Florida has been selected to carry out this work. Meanwhile NASA awarded Donovan the Ground Systems Development and Operations (GSDO) Mobile Launcher Ground Support Equipment Installation contract for $45.8 million.

SLS is designed to carry crews to destinations beyond low-Earth orbit. Meanwhile other vehicles are being developed under NASA's Commercial Crew Program such as Space Exploration Technologies (SpaceX ) crewed Dragon capsule and Boeing's CST-100. However, these are only meant to transport crews to the International Space Station.

SLS meanwhile will work to send the agency's new Orion spacecraft out of LEO – to destinations beyond. To achieve this, systems that have been in place for decades need to either be removed – or renovated.