Two efforts to make airline fare information easier for customers to understand were killed by President Donald Trump’s Transportation Department. The department announced Thursday on its website that it was withdrawing the proposals as part of Trump’s effort to reduce regulatory burden on U.S. businesses. As airline charges for such items as checking bags or getting seat assignments have grown, transportation regulators had sought to make the process of comparing prices more transparent. One pending regulation would have required airlines and ticket agents to disclose to consumers all fees during the process of buying a ticket, and the other would have collected more detailed revenue information from large carriers. The department said it was withdrawing them after input from industry and the public. “Having the DOT step back from developing rules to allow consumers to know the full price of travel and to be able to comparison shop is an affront to America,” Travelers United, an advocacy group for passengers, said in an emailed statement objecting to the action.