American Chemistry Council filed 1 comment on this docket between Nov 30, 2021 and Nov 30, 2021. 17 other organizations filed here. The comment window closed 1702d ago.
Attached please find the comments of the NAAQS Regulatory Review & Rulemaking Coalition on EPA's draft Supplement to the 2019 Integrated Science Assessment for Particulate Matter. Please contact Cindy Langworthy of Hunton Andrews Kurth LLP (clangworthy@hunton.com or 202/955-1525) if there are any problems concerning or questions about the attached comments.
Particulate matter is one of six principal criteria pollutants for which EPA has established National Ambient Air Quality Standards (NAAQS). Periodically, EPA reviews the scientific basis for these standards by preparing an Integrated Science Assessment (ISA). The ISA is the scientific foundation for the additional technical and policy assessments that form the basis for EPA decisions on the adequacy of a current NAAQS and the appropriateness of new or revised standards.
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