Mexico's decision to restrict imports of genetically modified (GM) corn for human consumption has been criticized by the U.S., with Agriculture Secretary Tom Vilsack expressing that the issue is unlikely to be resolved easily. The U.S. Trade Representative will initiate discussions with Mexico under the food safety provisions of the USMCA to address the concern. If no resolution is reached, a formal process under the USMCA will follow. The U.S. had requested Mexico to justify the ban with scientific evidence, but Mexico has since partially revised the decree without explaining its scientific rationale, leading to the ongoing dispute.