Accurate level measurement in vessel fuel tanks is key for safe, efficient maritime operations, ensuring optimal fuel management, preventing overfilling, and avoiding costly spillages. Precise monitoring in settling tanks separates water and impurities from fuel, while consistent level control in service tanks maintains steady engine fuel supply. The reliability of these measurements impacts engine performance, safety, and regulatory compliance. Advanced level measurement technologies like radar (continuous) and vibrating forks (point level) enhance accuracy and reliability, mitigating risks of manual measurements and sensor failures. Integrity of these systems is vital for smooth vessel operation, efficient fuel usage, and reduced environmental impact.