Forest Products Fairness Act of 2013 - Amends the Farm Security and Rural Investment Act of 2002 to include in the definition of "biobased product" forest products that meet biobased content requirements, notwithstanding the market share the product holds, the product's age, or whether the market for the product is new or emerging.
Defines "forest product" as a product made from materials derived from the practice of forestry or the management of growing timber, including: (1) pulp, paper, paperboard, pellets, and wood products; and (2) any recycled products derived from forest materials.