"NASA's Space Launch System (SLS) will have the largest cryogenic fuel tanks ever used on a rocket. Stands to test the tanks and other hardware to ensure that these huge structures can withstand the incredible stresses of launch will be built at NASA's Marshall Space Flight Center in Huntsville, Alabama. NASA is contracting for the construction of the test stands through the U.S. Army Corps of Engineers, which has awarded a $45.3 million contract to Brasfield & Gorrie of Birmingham, Alabama."
"Similar to the OIG's conclusions 5 years ago, the OIG found that NASA failed to follow its internal policies or its agreement with the DOD when it decided to spend approximately $352 million to refurbish and test the SLS core stage on the B-2 test stand at Stennis. Moreover, the OIG found that NASA did not adequately support its decision given that refurbishing the B-2 stand will be more costly and take longer than two other possible options: an Air Force test stand at Edwards Air Force Base in California and a test stand at the Marshall Space Flight Center."