An example of what the DOT could do but isn’t doing was a rule issued in 2010 by President Obama’s transportation secretary, Ray LaHood, a Republican no less.
At the time, there had been an outpouring of complaints about tarmac delays stretching back over a decade. When a flight left the gate but was not able to take off because of congestion or weather problems, the airlines found it more expedient to just let passengers sit on the tarmac for many hours rather than bring the plane back to the gate and let people disembark and wait in the terminal or make other travel plans.
The result was delays stretching out as long as
12 hours as planes ran out of water, food, and functioning toilets.
After numerous administrations and Congress failed to act, LaHood, under his general authority, issued a rule providing for per-passenger fines of $27,500 per passenger and requiring airlines to let passengers off after no more than three hours. The airlines complained but complied. Buttigieg could do no less with regard to fraudulent schedules and insufficient crews.