The Regulatory Assistance Project recently released two papers relating to 111(d): "It's Not a SIP: Opportunities and Implications for State 111(d) Compliance Planning" and "Driving Energy Efficiency: Applying a Mobile Source Analogy to Quantify Avoided Emissions."
It's Not a SIP: Opportunities and Implications for State 111(d) Compliance Planning
Driving Energy Efficiency: Applying a Mobile Source Analogy to Quantify Avoided Emissions