UWILD (Underwater Inspection In Lieu of Dry Docking) is a specialized survey process that allows vessels to meet classification society hull inspection requirements without leaving service. Conducted by certified divers or ROVs, a UWILD inspection can significantly reduce downtime, operational disruption, and dry-docking costs—provided it meets strict class approval standards.
Verify the structural integrity of a vessel’s underwater components
Fulfill class society inspection requirements without dry-docking
Support planned maintenance and regulatory documentation
Extend service intervals while remaining compliant and operational
Written approval must be obtained from the relevant classification society (e.g., ABS, DNV, Lloyd’s Register)
Survey scope, methodology, and contingency plans must be submitted in advance
Must be performed by class-approved commercial divers or ROV operators
Survey provider (like Commercial Marine Group) must be certified and experienced in UWILD execution
High-definition video and still cameras
Underwater lighting for clarity
Measuring tools and ultrasonic thickness gauges (if required)
Diver-to-surface communication systems for real-time updates
Hull plating – general condition, fouling, damage, coating breakdown
Propellers and shafts – wear, debris, cavitation damage
Rudders and pintles – operational integrity and corrosion
Sea chests, gratings, and valves – inspection of intake and outlet areas
Sacrificial anodes & CP systems – remaining life and performance
Thruster tunnels and weld seams – structural check and fouling
Unedited video recording of the entire inspection
Still images of key components and anomalies
Written observations from certified divers
Live attendance or video feed for class surveyors
Formal inspection report submitted for class approval
Eliminates unplanned or early dry-docking
Minimizes vessel downtime and cost
Maintains regulatory and classification compliance
Supports predictive maintenance and future planning
Not viable if major hull or machinery damage is suspected
Follow-up dry-dock may be required if issues are found
Survey conditions depend on weather, water clarity, and site accessibility
At Commercial Marine Group, our certified survey teams and advanced ROV/diving systems deliver class-compliant UWILD services that keep your fleet in operation, in compliance, and on schedule.
