Nitrogen dioxide designations - State recommendations and EPA response for Washington.
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Washington State Recommendation (PDF)(2 pp, 600 K, January 1, 2011)
- EPA Response to Washington Recommendation (PDF)(2 pp, 415 K, June 29, 2011)
- Washington Round 2 State Recommendation (PDF)(2 pp, 260 K, August 19, 2011)