Norwegian antitrust law has been marked by several important events in the past year. In May 2013, a revision of the Norwegian Competition Act (the Act), resulting in a closer harmonisation with the EU rules, particularly as regards the merger control regime, was adopted in the Norwegian parliament. Furthermore, the Norwegian Competition Authority (NCA) imposed its largest fine ever on a participant in an asphalt cartel. The case demonstrates that the Norwegian leniency regime is starting to work, as one of the cartel participants was granted full immunity on the basis of a leniency application. In 2013, the NCA was, for the first time, granted an interim decision provisionally suspending a cooperation agreement between two of the largest grocery chains in Norway.