This document discusses modeling the regional impacts of CAP reform, specifically comparing a Pillar 1 greening approach to a Pillar 2 greening approach. It outlines how the CAPRI and CAPRI-RD models were used to simulate the impacts of transferring 25% of Pillar 1 funds to Pillar 2 for environmental measures. The modeling found the Pillar 2 approach resulted in smaller declines in suckler cow numbers, declines in nitrate surplus, and a small rise in farm labor compared to the Pillar 1 approach. The document raises questions about how far the model assumptions may constrain the policy implications and what improvements could make the models more useful for policy analysis.