Earlier quoted context omitted.
In order to be fraud, doesn't there need to be some form of misrepresentation or deceit?
They claimed to be importing fuel into the US that was actually produced in the US.
edit:
The "glich" sounds to be with the EPA system. Its not clear if the problem is technical (like an ATM giving 40 for 20 requested withdrawl) or if the system did not differentiate between "crossing" and "production and importation", by design or specification. In any event, there's not much in the article that supports any forgery or false claim about the shipment's paperwork, etc. It was more that the EPA had no or poor controls. This latter case is a grey area between willful negligence (poor design of credit-issuance-proceedures) and potential fraud (unethical re-submission).