Testimony of John Walke on Clean Air Act

Testimony of John Walke, Natural Resources Defense Council (NRDC), for the September 8, 2011 Legislative Hearing on "H.R. 2250, The EPA Regulatory Relief Act of 2011 and H.R. 2681, The Cement Sector Regulatory Relief Act of 2011" before the Subcommittee on Energy and Power.