410 ILCS 625/3.5
(a) All vendors or booths selling specialty crops and raw agricultural commodities at a farmers' market in Illinois must post at the point of sale a placard or include on a label or packing slip the physical address of the farm or farms on which those products were grown or produced.
Specialty crops and raw agricultural commodities purchased through wholesale or retail markets may be offered for resale at a farmers' market. If the physical address of the farm or farms where the products were grown or produced is unknown, then the vendor must post at the point of sale a placard or include on a label or packing slip the physical address and business name, when applicable, where the products were purchased.
(Source: P.A. 98-660, eff. 6-23-14.)