Sky Express was given an unsatisfactory rating on April 12 and was given the 45-day period to appeal the Department of Transportation's decision. The company submitted an appeal on May 11, and was initially denied.
However, the Transportation Department then found drug, alcohol and hours-of-service concerns with the company, and extended its review period 10 days past the May 28 deadline for an official decision.
Because of the crash, LaHood decided to end the appeals process altogether and immediately put Sky Express out of service.
"There is no excuse for delay when a bus operator should be put out of service for safety's sake," he said in a statement. "On my watch, there will never be another extension granted to a carrier we believe is unsafe."
Pantuso said that there should be more inspections done on a regular basis.
"They had this long history of violations through 2009," he said of Sky Express. "Why weren't they put out of service?"
Sky Express appealed the Department of Transportation's decision and argued that it made the necessary changes.