To document all materials potentially hazardous to human health or the environment used in the construction of a ship, Zenitel Marine complies with the IMO resolution A.962 Clean Design/Green Passport.

Green Passport is verified and approved by maritime organizations like the DNV. After construction, a Green Passport accompanies a ship throughout its working life and allows any subsequent changes in materials or equipment to be recorded. The final owner delivers Green Passport with the vessel to the recycling yard.