Workshop to Discuss Policy-Relevant Science to Inform EPA’s Review of the Secondary National Ambient Air Quality Standards (NAAQS) 
for Oxides of Nitrogen and Sulfur

March 4-6, 2014
EPA's Research Triangle Park Campus
109 T.W. Alexander Drive
Research Triangle Park, North Carolina 27711

Due to inclement weather on the East Coast, we will proceed with the workshop with an abbreviated schedule on Tuesday, March 4. The workshop will start at 12:00 pm with registration beginning at 11:30 am. The workshop will end at 5:15 pm on the first day as regularly scheduled.

If you have registered to attend in person and can no longer travel to RTP, please send an email to and we will send you the information you need to participate in the workshop remotely. 

Webinar participation space is limited, so we ask those able to safely travel to please plan to do so. 

We will update this website if further information becomes available.