U.S. Secretary of Transportation Sean P. Duffy announced a plan to revitalize the nation’s air traffic control infrastructure Thursday. The Department of Transportation (DOT) said the purpose of the plan is to address vital safety requirements and built a “state-of-the-art air traffic control system” in a Thursday press release.

The Trump administration on Thursday proposed a multibillion-dollar overhaul of a U.S. air-traffic control system that it said still relies on floppy disks and replacement parts found on eBay and has come under renewed scrutiny in the wake of recent deadly plane crashes and technical failures.