Reviewing National Ambient Air Quality Standards (NAAQS)

Responses to Significant Comments on the 2014 Proposed Rule on the National Ambient Air Quality Standards for Ozone (December 17, 2014; 79 FR 75234)

This document, together with the preamble to the final rule on the review of the national ambient air quality standards for ozone (O₃), presents the responses of the EPA to public comments received on the 2014 O₃ NAAQS proposal notice (79 FR 75234).

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

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Responses to Significant Comments on the 2014 Proposed Rule on the National Ambient Air Quality Standards for Ozone (December 17, 2014; 79 FR 75234) (PDF)(407 pp, 2 MB)