Hearing on S. 1857, S. 203, S. 839 and S. 1934 November 14, 2017 10:00 AM John Walke Clean Air Director, Natural Resources Defense Council, Washington, DC Related Files Walke Testimony 11.14.17.pdf (94.7 KBs) Return to Hearing Related Files SPW 111417.pdf (205.7 KBs) Permalink: https://www.epw.senate.gov/public/index.cfm/2017/11/hearing-on-s-1857-s-203-s-839-and-s-1934