CEN’s radiochronology laboratory, run by lab technician Guillaume Labrecque, participated in the Sixth International Radiocarbon Intercomparison (SIRI) competition. The participating laboratories (almost 50) each received thirteen samples that had to be dated using the laboratories’ standard protocols. The results obtained were sent back to the organizers of the event, who then compared the results to consensus values. Guillaume’s results all fell within one sigma value compared to the consensus values, thereby officially confirming the excellence and precision of the dates provided by the CEN’s radiochronology lab. These results place the CEN lab among the best in the world for 14C dating. Congratulations!