Airlines would be prohibited from involuntarily bumping travelers with confirmed reservations to make room for others, under legislation introduced in Congress on Tuesday.

The bill, sponsored by Illinois Reps. Jan Schakowsky (D) and Raja Krishnamoorthi (D), is the first of what is expected to be a flurry of measures designed to prevent a repeat of an incident  this month in which a Kentucky man was forcibly removed from his seat after refusing United Airlines’ request that he leave the plane to make room for its crew members.

Its introduction also comes on the same day that new documents released by the Chicago Department of Aviation said that officers used “minimal but necessary force” when they removed David Dao, 69, from the flight.

According to his lawyers, Dao suffered a concussion, broken nose and lost two front teeth in the incident, which  was recorded and then tweeted by others on the Louisville-bound flight from O’Hare International Airport. The videos of a bloodied Dao  went viral, fueling public outrage and setting off a public relations crisis for one of the nation’s biggest carriers.

The “Bumping on Overbooked Airplanes Requires Dealing Fairly Act” (BOARD Fairly Act) would require the Department of Transportation to modify its rules regarding the practice of “bumping” passengers from their flights.  In instances in which a flight is overbooked, airlines would be required to negotiate with passengers before they board their flight. Airlines also would be prohibited from removing passengers from a plane unless it is for safety or for “genuine security” reasons.

Under current DOT rules, airlines must first ask for volunteers when there are not enough seats on a flight. If travelers are involuntarily bumped from their flight, they are, with some exceptions, entitled to compensation. It is up to the airlines, however, to determine  the amount and form of that compensation.

Several airlines, including United, have made changes to their policies regarding bumped passengers in the wake of the April 9 incident. United now requires crew members to check in an hour before their flight leaves to avoid any last-minute scramble for seats once passengers have boarded. Delta Air Lines has increased the amount that it offers passengers on overbooked flights.

Four officers with the Chicago Department of Aviation were suspended in the wake of the United incident.

United CEO Oscar Munoz also pledged a full investigation, with the results expected to be released by the end of the month.