To amend the Solid Waste Disposal Act to set a lower financial responsibility requirement for certain owners and operators of underground storage tanks.

Amends the Solid Waste Disposal Act to lower (from $1,000,000 to $500,000) the financial responsibility requirement for owners or operators of underground storage tanks who sell less than 1,000,000 gallons of petroleum products annually if the Administrator of the Environmental Protection Agency has established no evidence that a release from such tanks has occurred or is occurring.