The paper presents and processes data on inspections of the individual Memoranda (regions) and compares the overall number of ship detention cases. Also, the paper identifies the differences in various regions in the same period as well as their causes and consequences. Container traffic plays a key role in the international trade. Therefore, the research is based on a comparison of the inspection statistics (in general) and the ship detentions share with the total number of inspections and detentions of the container vessels for each region and the same period. The data have been collected from the annual reports of the individual Memoranda (regions), covering a five-year period, from 2015 to 2019. The results of the research have pointed to partially successful attempts to harmonize and standardize the inspection procedures, as well as to the problem of the non-existent uniformed inspection system.