On September 18, 2013, the U.S. House Committee on Energy and Commerce held a hearing on "Regulation of Existing Chemicals and the Role of Pre-Emption under Sections 6 and 18 of the Toxic Substances Control Act." This was the third hearing in a series held by the Committee on the Toxic Substances Control Act (TSCA). It comes at a time when the Senate Committee on the Environment and Public Works (EPW) is also considering TSCA...