A bill to extend the Superfund legislation through the fiscal year 1990, and for other purposes.

Amends the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 ("Superfund") to extend the authorization of appropriations to the Hazardous Substance Response Trust Fund ("Response Trust Fund") for five additional years, through FY 1990. Provides that so much of the aggregate amount authorized to be appropriated for prior fiscal years as has not been appropriated shall be added to the specified amount authorized to be appropriated for each such fiscal year.

Makes a conforming amendment extending by five years the period to be covered by the Secretary of the Treasury's annual report to the Congress on the management of the Response Trust Fund.

Extends the authority to collect taxes conferred by such Act through FY 1990.

Amends the Internal Revenue Code to provide for five-year extensions of provisions for an environmental tax on petroleum.