Energy and Environmental Security Act of 1990

Energy and Environmental Security Act of 1990 - Title I: Extension and Modification of Tax Incentives for Ethanol - Amends the Internal Revenue Code to extend excise tax reductions for specified alcohol fuel mixtures for nine years. Directs the U.S. Comptroller General to study the options for reimbursing the Highway Trust Fund for the reduction in its receipts due to such reductions.

Extends a tax credit for alcohol fuels to December 31, 2002. Prohibits carryovers of such credits after 2004. Extends such credits to alcohol used to produce ethyl tertiary butyl ether (ETBE).

Amends the Harmonized Tariff Schedule of the United States to extend: (1) the tariff treatment for ethanol to ETBE; and (2) the effective period of the temporary duty on ethanol to December 31, 2002.

Title II: Oxygenated Fuels and Aromatic Compounds - Amends the Clean Air Act to prohibit, during October to March of each year, the introduction into commerce in any carbon monoxide nonattainment area of gasoline with an oxygen content of less than 3.1 percent. Provides for the exchange of oxygen credits between sellers of fuels with an oxygen content higher than required and other sellers of fuels to offset the use of fuels with a lower content than required. Prohibits such exchanges between sellers in different nonattainment areas. Requires retailers of oxygenated fuels to label fuel dispensing systems with a notice that the fuel is oxygenated and will reduce carbon monoxide emissions.

Directs the Administrator of the Environmental Protection Agency to develop environmental profiles for each of the aromatic compounds in gasoline and to take action to limit the use of such compounds in accordance with the profiles.

Title III: Development and Use of Ethanol - Requires the Secretary of Energy to: (1) give funding priority to ethanol development projects that have high potential for immediate benefits; and (2) establish a program to promote the development and use of ethanol in motor fuel.