Ozone (O3) Standards - Regulatory Impact Analysis from Review Completed in 2015

This regulatory impact assessment (RIA) presents the health and welfare benefits of the ozone NAAQS, and compares the benefits to the estimated costs of implementing the NAAQS.

• Regulatory Impact Analysis of the Final Revisions to the National Ambient Air Quality Standards for Ground-Level Ozone, September 2015
• Regulatory Impact Analysis of the Proposed Revisions to the National Ambient Air Quality Standards for Ground-Level Ozone, November 2014 (PDF)(575 pp, 11.5 M)

You may also be interested in other documents from the current ozone NAAQS review.