The Second Chamber of the Superior Court of Justice (STJ in Portuguese) ruled unanimously on the legality of Decree 4,680/2003, which establishes a 1% limit for manufacturers of food products sold in Brazil to be obliged to inform, on labels, the presence of genetically modified organisms (GMOs).

The Federal Public Ministry and the Brazilian Institute of Consumer Protection (IDEC in Portuguese) filed a public civil action against the Union to question the legality of Decree 3.871/2001, which regulated the labeling of foods containing transgenic products up to 4% of their composition. . During the process, the original decree was replaced by Decree 4.680/2003, which reduced from 4% to 1% the limit that makes consumer information on the presence of GMOs mandatory.