The Animal Feeding Operation (AFO) Air Compliance Agreement is EPAÂs voluntary consent agreement to minimize emissions from certain AFOs and to ensure those operations comply with the Clean Air Act (CAA), the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), and the Emergency Planning and Community Right-to-Know Act (EPCRA). Participating AFOs pay a civil penalty based on size and number of farms to resolve potential past and current liability under the CAA, CERCLA, and EPCRA and contribute to a fund that will cover a two-year, nationwide monitoring study of AFO air emissions.