The present proposal dealt with the specific case monitoring plan of the SPT process using the transgenic corn DP-32138-1, approved for commercial release in December 2015 (Technical Opinion 4,865/2015). In March 2017, through Technical Opinion 5399/2017, CTNBio approved the exemption from the general post-commercial release monitoring plan for this GM, however, it requested that the applicant submit a “... allows meeting the requirement determined in the commercial approval of event DP-32138-1, which is to monitor the efficiency and genetic stability of the SPT process, specifically at the stage in which event DP-32138-1 is used”. The proposed case-specific monitoring plan is focused on color sorting steps to monitor the ongoing efficiency of the SPT process. This will provide evidence that the SPT process is running as expected and described in Process No. 01200.001761/2013-18. Use will be limited to the applicant's internal operations in Brazil for the production of hybrid corn seeds. The applicant reported that the maintainer SPT 32138 is used as a pollinator to propagate the seeds of male-sterile female lines. The SPT process was developed in such a way that the female lineage seeds produced using the SPT maintainer do not contain the insertion of event 32138 and, consequently, the F1 hybrid seeds produced using these male-sterile female parental lines, as well as the commercial grains. produced in the fields do not contain an insert derived from event 32138 and therefore are not transgenic for SPT. As such, the SPT process will be used internally by DuPont Pioneer for the production of hybrid corn seed, and the SPT 32138 maintainer is not a commercial product per se, nor part of a commercial product; and there is no intention to introduce the transgenic seed of the maintainer SPT 32138 into commercial grain channels.