On November 17, 2008, we reported on the draft scoping plan of the Air Resources Board (ARB) for implementation of the Global Warming Solutions Act of 2006. After reviewing both (1) the response of the ARB (dated November 26, 2008) to the questions we asked about the proposed scoping plan to reduce greenhouse gas emissions on October 3 of this year and (2) ARB’s response to the peer review of the scoping plan, our office continues to conclude that ARB's economic analysis of the AB 32 scoping plan lacks a sensitivity analysis and fails to lay out an investment pathway for the scoping plan.