Renewable Fuels and MTBE: A Comparison of Provisions in the Energy Policy Act of 2005 (P.L. 109-58 and H.R. 6) [Updated October 3, 2006] [open pdf - 72KB]
From the Summary: "In the Energy Policy Act of 2005 (P.L. [Public Law] 109-58, H.R. 6), Congress established a requirement for the use of renewable fuels and revised Clean Air Act and underground storage tank regulatory requirements to address public health and environmental concerns associated with the use of fuels and fuel additives, especially methyl tertiary butyl ether (MTBE). Much contentious debate centered on the issue of how to address water quality problems associated with MTBE use while preserving air quality benefits of reformulated gasoline and, at the same time, promoting the use of renewable fuels (especially ethanol). This report compares the renewable fuel and MTBE provisions in the House and Senate versions of H.R. 6 with the provisions Congress ultimately agreed to in Title XV of P.L. 109-58. […] The Energy Policy Act also amends the underground storage tank (UST) regulatory program to specifically authorize EPA and states to use funds appropriated from the Leaking Underground Storage Tank (LUST) Trust Fund to address fuel leaks involving MTBE and other oxygenated fuel additives. The law also expands the leak prevention provisions of the UST program and imposes new requirements on states, EPA [Environmental Protection Agency], and tank owners."
CRS Report for Congress, RL32865