2020-08143: Review of the National Ambient Air Quality Standards for Particulate Matter
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Based on the Environmental Protection Agency's (EPA's) review of the air quality criteria and the national ambient air quality standards (NAAQS) for particulate matter (PM), the Administrator has reached proposed decisions on the primary and secondary PM NAAQS. With regard to the primary standards meant to protect against fine particle exposures (i.e., annual and 24-hour PM<INF>2.5</INF> standards), the primary standard meant to protect against coarse particle exposures (i.e., 24-hour PM<INF>10</INF> standard), and the secondary PM<INF>2.5</INF> and PM<INF>10</INF> standards, the EPA proposes to retain the current standards, without revision.
The agency’s own summary, as published.
What this changes
Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.
Rulemaking docket
We haven’t pulled this rulemaking’s full docket yet. View docket EPA-HQ-OAR-2015-0072 on Regulations.gov →
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