A bill to amend the Agricultural Marketing Act of 1946 to foster efficient markets and increase competition and transparency among packers that purchased livestock from producers.

Amends the Agricultural Marketing Act of 1946 to require that 25% of a covered packer's daily kill comes through spot market sales from nonaffiliated producers.

Sets forth a different percentage through 2011 for covered packers who reported in the 2006 annual report that more than 75% of their livestock were captive supply livestock

Defines "covered packer," "nonaffiliated producer," and "spot market sale."