The Argentina Securities Commission has issued General Resolution No. 1131 to reorganize and simplify the rules governing investigations and sanction proceedings. The changes allow certain investigative hearings to be held by videoconference, make ratification of complaints mandatory within a defined window after filing, and require publication of key procedural resolutions on the regulator’s website. Informational and testimonial hearings may be conducted by videoconference in investigations where distance justifies it, at the declarant’s request and subject to the CNV finding sufficient grounds. Complaints filed with the CNV must be ratified through the mechanisms available on its website no earlier than four business days and no later than 20 business days after submission, failing which they may be treated as not filed. In abbreviated sanction proceedings, respondents represented by an attorney at the preliminary hearing no longer need to complete a later ratification. The resolution also aligns the timetable for file access in proceedings with General Resolution No. 1112, clarifies terms and acronyms used in the rulebook, removes obsolete hearing formalities, updates the grid of infringing conduct eligible for abbreviated proceedings, and requires the CNV to publish on its website, from the time of notification, resolutions that open or close proceedings, remove a respondent from a case, or impose preventive suspensions.