The information in the CSI database comes from
 ship-owners who submit details of their fleet to the Index.
 They have completed a comprehensive questionnaire
covering the relevant environmental parameters.


Certificates will be issued to vessels that have been verified by a third party. Ship-owners can approach classification companies that have been accredited by the Clean Shipping Index. Certification can also be combined with other class surveys. Certification costs are a matter between the ship operator and the classification company. If you would like to read about the detailed audit procedure, download our Verification guidelines.

Click here to download
an example certificate