Natural Resources Defense Council (NRDC) filed 1 comment on this docket between Apr 2, 2009 and Apr 2, 2009. 8 other organizations filed here. The comment window closed 6327d ago.
Our comments are provided as Attachment 1. Attachments 2 and 3 are attachments to the comments.
This rulemaking action proposes revisions to the existing rule for implementation of the 8-hour ozone national ambient air quality standard (NAAQS) to address partial vacatur by the US Circuit Court of Appeals for the DC Circuit. The proposal addresses the classification system for nonattainment areas that the implementation rule originally covered under CAA title I, part D, subpart 1 and also new source review provisions that apply as anti-backsliding measures under the now-revoked 1-hour ozone NAAQS.
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