These are firstly against the data and configuration for other boats of that design if a production boat, but also for any apparent anomalies that may indicate an application error or a novel configuration. These are sometimes simple to resolve, or we will check with the owner or measurer to confirm information or resolve any errors.
This diligence for every certificate is integral to the fair playing field for IRC, resulting in more accurate data for the IRC rating calculation and allowing owners to focus on their sailing.