Over 85 jurisdictions now have merger control statutes. As a result, mergers between multinational corporations frequently trigger merger control requirements in multiple jurisdictions, particularly in those countries where merging parties have substantial operations, subsidiaries or registered offices, or where their sales or market shares exceed statutory thresholds. Significantly, many jurisdictions that mandate pre-merger notification prohibit the parties from closing the transaction until after a clearance decision has been granted or waiting periods have elapsed.