. . . . . . . . . . . . "Railroad and hazardous materials transportation programs : reforms and improvements to reduce regulatory burdens : hearing before the Subcommittee on Railroads, Pipelines, and Hazardous Materials of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Twelfth Congress, first session, April 7, 2011"@en . . . . . . . . . . . . "Railroad and hazardous materials transportation programs reforms and improvements to reduce regulatory burdens : hearing before the Subcommittee on Railroads, Pipelines, and Hazardous Materials of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Twelfth Congress, first session, April 7, 2011"@en . .