NTAA’s PRK for EPA’s Review of the Secondary NAAQS for Oxides of Sulfur, Oxides of Nitrogen, and Particulate Matter
On April 3, 2024, the EPA proposed to revise the secondary National Ambient Air Quality Standards (NAAQS) for oxides of sulfur (SOx) and to retain the secondary standards for oxides of nitrogen (N oxides) and particulate matter (PM). The EPA sets secondary standards to protect the public welfare against adverse effects – including ecological effects such as damage to vegetation – caused by certain air pollutants. The EPA last reviewed the secondary standards for ecological effects of SOx and N oxides in 2012, and PM in 2013. More information, including the importance for Tribes, can be found in the fact sheet below.
Comments on this proposed rule are due to EPA by June 14, 2024 using the Federal Rulemaking Portal or by email to a-r-Docket@epa.gov. The Docket ID is: EPA-HQ-OAR-2014-0128.
NTAA’s PRK
- NTAA Tribal Template Letter – A template Word document that includes NTAA’s comments that can be used by Tribes to submit to the EPA.
- NTAA Fact Sheet – A three-page fact sheet that can be used by Tribes to inform community members and leadership regarding this proposed rule.
- NTAA Comment Letter – The official letter NTAA submitted to the EPA in response to the proposed rule.