A President Trump-backed plan to separate air traffic control from the federal government would trigger a round of mandatory spending cuts, according to a new analysis.

A memo from the nonpartisan Congressional Research Service (CRS), released Monday by Democratic Reps. Peter DeFazio (Ore.) and Rick Larsen (Wash.), found that legislation to hand over the country’s air navigation system to a private entity would trigger budget sequestration, which automatically cuts some mandatory spending programs if a piece of legislation exceeds certain budget caps.

In the case of the air traffic control (ATC) spinoff plan, it would result in across-the-board spending cuts of $49 billion over the next 10 years. That would include cuts to Medicare, the Military Retirement Fund, the Federal Emergency Management Agency National Flood Insurance Fund and other critical programs, DeFazio and Larsen warned.

“The bill creates an enormous cloud of uncertainty over the future and safety of the U.S. aviation system and increases the deficit by almost $100 billion,” Larsen and DeFazio wrote in a letter to colleagues. “As time passes, the pitfalls and dangers of ATC privatization continue to grow.”