Ethanol Producer Magazine Podcast Features Tony Miller on D3 RIN Enforcement Readiness

Ethanol Producer Magazine recently featured Weaver’s Tony Miller on its podcast to discuss D3 RIN compliance and increasing U.S. Environmental Protection Agency (EPA) enforcement activity across the renewable fuels industry. The episode previews Tony’s upcoming session at the Fuel Ethanol Workshop (FEW), where he will speak on preparing for inspections and enforcement across fuel programs.

Drawing on his experience as a former EPA inspector and enforcement leader, Tony explains that D3 RIN generation’s expansion in recent years has shifted the industry into a phase of increased enforcement activity. He notes that inspections are already underway, signaling a move toward ensuring consistency and compliance across producers.

Tony also outlines key differences between D3 and D6 RIN compliance, emphasizing the additional complexity associated with D3 RINs, including detailed tracking of production, inventory, shipments and nonqualifying volumes. “EPA inspections can feel daunting, but preparation makes a significant difference,” he says. “Understanding what to expect and being audit-ready can help reduce disruptions and lower the risk of enforcement actions.”

The discussion highlights the importance of proactive compliance with a focus on documentation readiness and operational alignment as enforcement activity continues to evolve.

Listen to the full podcast here

©2026