Two-tiered pricing refers to a system under which commodities for domestic use are supported at one level and those for export markets at another, lower level.

In the United States, the peanut price support program

Peanut Price Support Program

The 2002 farm bill replaced the longtime support program for peanuts with a framework identical in structure to the program for the so-called covered commodities...

, until policy changes made by the 2002 farm bill (P.L. 101-171, Sec. 1301-1310), used a two-tiered pricing system with a higher level of support for “quota peanuts” that could be sold domestically as edible peanuts and a lower level of support for “additional peanuts

Additional peanuts

In United States agricultural policy, additional peanuts refers to peanuts sold from a farm in any marketing year in excess of the amount of quota peanuts sold from that farm. Additional peanuts must be exported or crushed into oil and meal...

” that only could be exported or crushed if that stayed in the United States.