A tank cleanliness survey is important for several reasons:

Safety: Tanks that are not clean can pose a safety hazard, as residual fuel or other substances can cause fires, explosions, or other accidents. A tank cleanliness survey helps to identify any potential safety hazards, allowing vessel operators to take appropriate measures to mitigate the risks.

Quality control: A tank cleanliness survey ensures that tanks are free of any contaminants or residues that could affect the quality of fuel or other substances being stored or transported. The survey can detect any potential issues with tank cleanliness, allowing them to be addressed promptly and preventing damage or loss of cargo.

Regulatory compliance: Many regulatory bodies require tanks to be kept clean and free of contaminants. A tank cleanliness survey helps to ensure that the vessel is compliant with these regulations, reducing the risk of fines and other penalties.

Efficient operation: A tank cleanliness survey can help identify any issues with the tank cleaning process, such as ineffective cleaning methods or insufficient cleaning frequency. Addressing these issues promptly can help prevent operational problems and downtime.

Cost management: Proper tank cleaning and maintenance can help vessel operators manage costs by minimizing the risk of cargo damage or loss, and reducing the need for expensive repairs.