A bill to define natural resource subsidies for purposes of the countervailing duty laws.

Amends the Tariff Act of 1930 to include in the definition of "subsidy" (for countervailing duty purposes) any natural resource subsidy as determined under the provisions of this Act. Defines the term "natural resource subsidy" to mean the sale of a product by a government controlled or regulated entity at a price which, by reason of such control or regulation, is lower than fair market value and constitutes a significant portion of the total cost of the manufacture of such product. Sets forth the method of calculation for determining the level of a natural resource subsidy. Defines the term "fair market value" for purposes of determining the level of a natural resource subsidy.