Think that train horn is too loud? What you can do about it

Here is the Federal Railroad Administration Alleged Violation Reporting Form. Note this instruction:

"Your submission is voluntary and anonymous unless you choose to provide us with your contact information. Choosing not to provide your contact information may affect our ability to follow up with you on the status of the investigation and may prevent us from adequately investigating the alleged violation."

FYI: Sending an anonymous complaint is probably not the best course of action.