This thesis examines applications of the International Ship and Port Facility Security (ISPS) Code for ships visiting ports in the Black Sea and Mediterranean regions. The ISPS Code was created by the International Maritime Organization in response to terrorist attacks involving ships and ports. The thesis analyzes ISPS Code implementation through qualitative document reviews and quantitative surveys of Turkish seafarers. While the ISPS Code aims to standardize security globally, the research finds variations in its application across different countries and ports in the regions.