Offshore tank container inspections
Offshore tank containers typically transport fuels such as helicopter kerosene and other hazardous materials. Precise inspections of frames, lifting components, and tank bodies keep containers safe, certified, and operational. We inspect frames and lifting gear annually, and tank bodies every 2.5 to 5 years.
Control Union consolidates all inspection and maintenance activities into a single visit.
Compliance through accredited inspections
Control Union operates globally as a recognized ABS Container Certification Firm (CCF). We conduct periodic tank container inspections directly on behalf of the American Bureau of Shipping (ABS) and approve them ourselves, no separate external surveyor required for final sign-off.
As a member of the International Tank Container Organisation (ITCO), our inspections seamlessly align with current industry standards and best practices. The result: one fully accredited inspection cycle that meets IMDG, ADR, and RID requirements without additional coordination.
Operational assurance for offshore tank containers
Inspection and maintenance in one visit
Control Union replaces seals, gaskets and appendages during the inspection teardown, so the tank leaves the workshop fully maintained without a second appointment.
Aligned frame and tank body intervals
Annual frame and lifting-gear checks run alongside the two-and-a-half-yearly tank body inspection, consolidating multiple compliance obligations into a coordinated schedule.
Multi-skilled certified inspectors
Each inspector covers lifting gear, frame structure and tank body disciplines, reducing the number of specialists needed per visit and cutting mobilisation costs.
Asset management in online portal
Tablet bases inspections ensure fast and streamlined delivery of reports in the online client portal. Here, all information regarding your asset management is centrally located.
In-company workshop arrangements
For larger fleets, Control Union deploys dedicated teams at the operator’s own facility, removing transport costs and keeping tanks closer to their deployment base.
The proof to your promise
Cost-efficient, independent, technically complete
Control Union delivers fully accredited offshore tank container inspections that combine independence, in-house ABS sign-off and integrated technical services in one efficient process.
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With our ABS-authorised surveyors on staff, Control Union signs off inspections internally, delivering significant cost savings compared to hiring external classification surveyors for each tank.
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No affiliation with insurers or maintenance contractors keeps every inspection finding fully objective and defensible during regulatory audits.
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Valve testing, tank vessel thickness gauging and seal and part replacement run within the same inspection window, so tanks return to service technically complete.
Proof to your promise
Frequently asked questions
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Local knowledge
Global coverage
Control Union drives global trade forward. As an international and independent partner, we support traders, producers, brands, and logistics service providers in managing risk and safeguarding quality at every step of the supply chain.
From raw material to final product, from processes and systems to installations, we provide insight, assurance, and trust in every link of the chain. We do this through inspections and audits, certification and verification, laboratory analyses, and pest management.
Our global network of experts are embedded in international supply chains across dozens of sectors, including agriculture, food & feed, energy & biofuels, forestry, construction & infrastructure, textiles, maritime, and on- and offshore.
Together, we build future-proof supply chains and confidence in global trade!