The prohibitions on genetically modified corn, which appear toward the end of the decree, have more profound implications. The immediate ban on permits for cultivation of GM corn formalizes current restrictions, ordered by Mexican courts in 2013 when a citizen lawsuit challenged government permitting of experimental GM corn planting by Monsanto and other multinational seed companies on the grounds of the contamination threat they posed to Mexico's rich store of native corn varieties. The import ban cites the same environmental threats but goes further, advancing the López Obrador administration's goals of promoting greater food self-sufficiency in key crops. As the decree states: