Try searching the internet.
http://airconsumer.dot.gov/publications/flyrights.htm
Involuntary bumping
DOT requires each airline to give all passengers who are bumped involuntarily a written statement describing their rights and explaining how the carrier decides who gets on an oversold flight and who doesn't. Those travelers who don't get to fly are frequently entitled to denied boarding compensation in the form of a check or cash. The amount depends on the price of their ticket and the length of the delay:
* If the substitute transportation is scheduled to get you to your destination more than two hours later (four hours internationally), or if the airline does not make any substitute travel arrangements for you, the compensation doubles (400% of your one-way fare, $1300 maximum).
Complaints about airline service may be registered with DOT's Aviation Consumer Protection Division (ACPD). You can call, write or use our web-based complaint form.
You may call the ACPD 24 hours a day at 202-366-2220 (TTY 202-366-0511) to record your complaint.