Mexico’s regulatory framework addresses the cultivation of genetically modified (GM) crops (Gutiérrez 2010). This framework consists of a Biosafety Law and an additional Bylaw published in 2005 and 2008, respectively (DOF 2005, 2008). The Biosafety Law requires stepwise field evaluations of GM crops, starting with small plots in an Experimental Phase followed by larger plots in a Pilot Phase prior to commercial plantings. Plant characterization data generated during the Experimental Phase allow Mexican regulators to assess for unintended effects and the absence of adverse impact of the GM crop on the receiving environment and plant health. Subsequently, these data facilitate the issuance of planting permits, thus advancing the regulatory process.