The EPA will host a public meeting Tuesday, March 26 to receive comments on its proposed Quality Assurance Program (QAP). Developed after consultation with the biodiesel and petroleum refining industries, the QAP is designed to prevent fraudulent RIN trading like that which plagued the biodiesel sector last year. If obligated parties follow the procedures in the QAP, they can avail themselves of an affirmative defense if they are later discovered to have purchased fraudulent biofuel credits. Some biofuel producers assert the QAP will be a costly administrative burden.