The law firm Cleary Gottlieb Steen & Hamilton has inked a contract with the U.S. Treasury Department to help guide the Trump administration on the structuring of loans and other transactions involving air carriers grappling with a substantial drop in travel amid the coronavirus crisis.

The “letter contract” calls for Cleary to advise on direct loans from the Treasury Department and other “transactions with air carriers involving a portfolio of assets that Treasury will acquire, invest in, or guarantee.” The Treasury Department said those assets could include debt obligations and equity interests.