Summary of the Updated Regulatory Impact Analysis (RIA) for the Reconsideration of the 2008 Ozone National Air Quality Standards (NAAQS)

摘要

This supplement to the RIA contains an updated illustrative analysis of the potential costs and human health and welfare benefits of nationally attaining a new primary ozone standard. The basis for this updated economic analysis is the RIA published in March 2008 with a few significant changes. These changes reflect the more stringent range of options being proposed by the Administrator. It also reflects some significant methodological improvements to air pollution benefits estimation, which EPA has adopted since the ozone standard was last promulgated.